F1 mainly with ACC/modded AC if I want to use the manual shifter, and iRacing VERY occasionally if a friend organises things.
Don't worry, I'm crap. Its like what retired guys do with golf - I'm not quick and I know it but I enjoy the taking part and the community aspect.
There's a big F1 league for example and I was midtable in Division 6 which is the "aww bless" level. It's pretty humbling as a hobby though; I always considered myself a driver that wasn't awfully slow but you get online with these guys and they effortlessly blow you out of the water. These e-sports guys who are going pro in F1 are literally ridiculously quick.