Board Games, Collecting hobbies and interests, Construction, Cooking, Discing, Geocaching, Photography, Running (is that an interest? It's a thing I do an hour at a time that I don't NEED to do), Sewing, Skiing, Woodworking... Writing.
Going down rabbit holes of random information and dubious trivia?
I'll leave it at that.
Baby Driver, The Dark Crystal, Fight Club, Hausu, Knives Out, LOTR, Satoshi Kon Films, Scott Pilgrim, Miami Connection, Nausicaa of the Valley of the Wind, Pans Labrynth.
I'm quite fond of some obscure media and arthouse stuff as well. Look up "Beyond the Mind's Eye" on Youtube. If you're watching a CGI fever dream, you're in the right place.
Anything in the "So bad it's good" category tends to have a place with me as well.
Aggretsuko, Bojack Horseman, The Boys, Galavant, Hilda,
I also watch lot of Anime. Not much recently but I guess I can be considered a Weeb Grandpa. I'm not going to list all the stuff I like aside from Cowboy Bebop, Jojo's, and Konosuba
Anything Phillip K Dick, Harry Potter, Lord of the Rings, Orwellian Fiction
I'm more fond of Graphic Novels.
Anything Brian K. Vaughan, Berserk, Hellboy, Rat Queens, Sandman, Scott Pilgrim, Watchmen
Bioshock, Borderlands when it's trying to be fun and not funny, Breath of the Wild, Crystal Caravans, Fable, Hyperlight Drifter, Inside, KOTOR, Minecraft, Monster Hunter, Pikmin, Sonic Adventure 1+2 (I classify them as "so bad it's good video games"), Witcher 3
Board Games as well.
Battlecon, D&D 3.5 and 5e, Dixit, Eldritch Horror, Gloomhaven, Mage Knight, Mage Wars, Magic: The Gathering, Pathfinder, Splendor,