I have a few.
Sports are a big one. I'm a massive Liverpool fan. I'm a very big NFL fan. I'm a very big tennis fan. I follow boxing. I'll watch just about everything else. I haven't spent as much time watching sport live since we've had kids because I don't want to be that dad who is sat watching sports and ignoring the rest of his family, but I have a lot of really good memories tied to sporting events that I've been to, and will also be happy to sit and watch live sport if the opportunity arises. I do play sports and keep myself fit, but I wouldn't count any specific thing in that regard as an interest anymore. I played tennis for the school team, then used to do a lot of martial arts (I'm a black belt in Taekwon Do and competed to a high level at university) and then played club level badminton for a while, but I don't do anything like that consistently anymore.
Reading is the obvious one after sports. I generally have several books on the go at once. Usually one physical book, one on my Kindle and one graphic novel. I don't tend to read crime or romance based books (whether general or romantasy), but I read just about everything else. A lot of fantasy and sci fi. A lot of non fiction (across the spectrum). And just about anything else that catches my eye, I think I might like, is popular, or I want to read for any other reason.
Beyond that, I think travelling has become an interest. My wife has slowly converted me to it during our relationship, but I do have a real desire to discover new places and things about those places. Our recent trip to Scandinavia was my idea. If you'd told 16 year old or even 24 year old me that I would have happily proposed and planned a holiday where I drive around Denmark and Norway for four weeks, that version of me would not have believed you. But I'm really keen to collect new experiences for both me and my kids.
I wouldn't count television as an interest anymore, but I am (unsurprisingly) generically geeky. I really like board games, but struggle to find the time to play them, so I own more than I ever really get chance to play. The one other thing I'd mention on that front is that I used to collect and play Warhammer when I was younger. I really enjoyed the lore, rules and models, but never had an interest in painting them. A couple of my close friends never gave the hobby up, and one of them is an exceptional, national level painter. We're both NFL fans as well, but I see him quite a lot, and have tried over the last couple of years to get into painting. I've had some success and have painted a fair few models, but I want to do it more consistently. So hopefully in another year or two I can count it as a consistent hobby, because it's rewarding, quite meditative, and helps me develop a creative side that I don't really credit myself as having for the most part. It's probably not something I do enough to strictly count right now though.