I don't like MMOs and have never gotten into them. I'm not a huge fan of online gaming in general, especially when it comes to the type of open-world adventure games they tend to be, which I would rather just experience single-player. I've had fun with some MOBAs, though.
I'm not a fan of fighting games either, mostly because I'm bad at them and consider it too much investment to learn combos and characters. When I do play fighting games, it's usually simpler or non-traditional ones.