Personally: Hiking, biking, photography, DnD, and fixing things.
It sounds like a lot (because it is lol) but with ADHD having a group of hobbies I can orbit around (especially if they can overlap (like these ones))can help me avoid diving into too many new hobbies.
Before kid: Reading, astronomy, cross-fit, nail polish, coloring, playing the Sims, cross-stitching, DnD.
After kid: Sleeping, DnD, cross-stitching, and a little tiny bit of astronomy (involves bargaining with spouse).