My husband has cycled through many hobbies over the years. Used to be reading, fixing cars, and maintaining aquariums. Now it’s biking-riding, training, buying, selling, restoring old ones, fixing all of ours and helping the neighbors with theirs and he has a personal crusade that everyone should bike-he’s in really good shape too. He also does computer stuff, but not much surfing or e mail, it’s tweaking and changing, and building and breaking and trying new things. About 2 years ago he decided to learn guitar. He has taken some lessons and bought a few guitars- that is a bit expensive but doesn’t have to be- good used ones can be found, and solid round of lessons can send a novice off to try things out on their own.
Except for the biking he has no intersest in sports, for me it’s great- no football, basketball, baseball. He does most of the grocery shopping and says the best time to go all year is during the super bowl! Which reminds me he likes to cook too, but used to be more into that than he is now.
So there you go cooking, music, something semi athletic, reading, or just learning about something new because it interests you- those are my best suggestions. What about gardening? Or home repair?- That has the great benefit of improving your house-it’s expense depends on the project.