Outside Touhou, many of us might also have other series and franchises we enjoy. For me, the ones I have gone through over the years would be the following:
1) Star Wars
Probably the first franchise I ever heard of. Despite not having watched it as a child, it still had an almost legendary status for me, and was a film series I really wanted to watch one day. From the few documentaries seen and some TV shows about sci-fi, I left with a quite confused image of what was going on the films, but things would soon change. Back in 2014, when I first heard a new film would be coming out, I was quite excited. At the time, I had no idea what the Sequel Trilogy would turn into, I was just happy to hear a new film would be released. Then, in anticipation to the release of The Force Awakens, TV channels started broadcasting every weekend all the six films up to that point, and so I got the chance to see everything (got to see them in chronological order, so there's that).
Then the years have passed. I started reading more and more on the Wookiepedia, got quite an interest in the vehicles of the series (ever since a child I was completely fascinated by the whole AT-AT attack scene in the battle of Hoth). However, at the same time was also getting more and more exposed to all the faces of the fandom in itself too (especially to the so-called "Fandom Menace"), as this was the time when I actually started using the internet more frequently. In the end, by the time Episode IX, I started to feel a bit of boredom. I did not even watch the whole film, but already knew it has been quite a mess. Plus, at the time I was also discovering new series, but more on that later.
Afterwards, the only things that kept my greatly diminished interest have been like the non-film products - The Mandalorian season I & II, The Clone Wars season 7 (they finally finished the animated series) and Bad Batch. What made it even better has been that I spent my time watching these with a fiend who was also into Star Wars (and film/series in general). I still like the aesthetic for the series, especially for Imperial warships and vehicles, and I am happy when an old design is re-canonized or created from scratch. I am also one of those weird fans who likes Dark Empire, and actually loves the visuals from the comic book adaptation.
2) The Lord of the Rings/anything written by Tolkien
Probably on par with Star Wars in terms of seeing it as a legend before having the chance to watch/read it. My oldest memory about it is related to seeing The Two Towers film adaptation as a child, and since it got my curiosity. When The Hobbit films came out, I watched those, and did not have any problem with them. I enjoyed them for what they were, and never went for nitpicking. To be fair, at the time I still did not get to read the original books, and so my expectations were low.
6 or 7 years ago, I actually started reading the books. First, I read the Hobbit, then moved to LoTR. I do not think I have ever read 1500 pages as fast as I did with that book trilogy. despite feeling a bit weird at the beginning (the Hobbit felt quite a bit like a children's book, while LoTR shifts the tone quite a lot, yet it still have the "suddenly song" moment here and there), but after a while, I actually grew to love them. For quite a while, I was fascinated by the world-building, the characters and wars of Middle Earth. At the time I was also playing Medieval II Total War, so it came perfectly when I discovered the Third Age TW mod. Then, after a lot of years, did I get to actually watch the LoTR film adaptations by Peter Jackson. I could finally watch something I only remembered vaguely from my childhood, and in the end, I really liked the films. Even today, I am still coming back to this film trilogy from time to time.
Nowadays, I guess I lost a bit of interest, but I still like the Tolkien universe quite a lot. Whenever I feel it, I am coming back to it to see why I enjoy it so much. I have heard all the rumors, discussions and controversy surrounding the upcoming Amazon series, but by now, I really don't care. I am not too interested to watch it anyway, so why even bother.
3) Warhammer 40,000
Even if for the past couple years it has become one of the main series I am interested in, I will probably get it shorter than expected. As I was starting to get more and more bored of Star Wars, especially after The Rise of Skywalker, I was looking for new series to get into. What got me into the grimdark future of the 41st millennium has actually been a little shitpost series called If the Emperor Had a Text-to-Speech Device. It was catchy, it was fun, and boi, did it make me curious to learn more about Warhammer. From there on, I have had an entire world pandemic and 2 months lockdown in 2020 to get even more down that rabbit hole.
I would have liked to give tabletop a try, but things are ridiculously high even for basic models, so I do not think it would be so woth the investment. If there is a faction I like the most, it would be the Imperial Guard. I am just more interested in an army of human conscripts, but in masive numbers, and armed with a lot of very cool looking vehicles. Of there is a setting in the franchise I would say I am more fascinated by, that would be the 30K/Horus Heresy era. It just feels so archaic, a lost era filled with tons of cool designs and an interesting aesthetic (I really like the power armor models of that era, especially the Mark II and III), as well as the concept of a "space marine legion" instead of mere "chapters" as they are organized in the 41st millennium.
4) BattleTech/MechWarrior
Probably the most recent addition to my collection of series I like. I am still in my fist couple of weeks of exploring it, but I got quite an excellent introduction through the TEX Talks BattleTech videos. I ended up from having a slight dislike for BT due to it being a rival to Warhammer (and a series I had no idea about - fear of the unknown, I guess) even if BattleTech is older than Warhammer by a few years, to something I am looking to learn more and more about. Anyway, if anyone wants to get a starting point, TEX is excellent. Easy to digest lore (even if videos are very long - it does not feel as if you spent almost 2 hours watching), a lot of humour, and ending skits are always a gold mine. The series in itself has quite an interesting aesthetic, with some sort of retro futuristic stuff going it - it really does look like a series that came out in the 1980s.
For the introductory videos (also adding the Battle of Tukayyid because ALWAYS REMEMBER that a telecom company managed to beat an entire force of warrior caste fighters armed with superior tech and stronger warriors)
And some of the extra, entertainment stuff. It is gunny how many of these skits are made as if they were in-universe commercials or shows that would actually be broadcasted