Light-hearted fiction that keeps your attention?

I’ve always been someone who strictly reads thrillers, mystery and horror. I don’t stray very far from those because I feel like they keep my attention and are, well, thrilling. Lately, however, I’ve been having trouble sleeping and experiencing nightmares related to what I’m reading. So I’m looking for some fiction recs that are light hearted and fun, but not boring; still gripping and going to hold my attention all the way through.