If you want to keep the space theme going, Star Trek Lower Decks is lighthearted an fun. It probably helps if you've seen lots of Star Trek, but I'd say give it a shot.

I'd also recommend Bob's Burgers. It's not going to give you much in terms of long term story arcs, but each episode is its own self contained story. The family in the show is just great and fits your lightheaded criteria.