I’ve been reading things that I find cheery and uplifting lately (and recommending them to anyone who seems to need that), because that seems like something that might be surprisingly helpful.
-The Goblin Emperor by Katherine Addison. I re-read this every once in a while, because it’s both really well written with a fascinating world and a lot of courtly intrigue, but most because it’s… well… kindness porn. It’s about a young man who suddenly finds himself in the position of Emperor, and approaches the job with wits and compassion and loyal companions.
-The Guild Codex: Spellbound series (starting with Three Mages and a Margarita) by Annette Marie. Cheery, fun urban fantasy adventures where the protagonist gets by on her wits, courage, and loyalty. It’s about a young woman who takes a bartending job, only to discover that the bar is actually a guild for people with magical powers. Word of warning on this one though: I tore straight through them from book one to book six, and book seven… isn’t out until July.
-A Pale Light In The Black by K.B. Wagers, about a team of… outer-space coastguard is the best way to describe it… working together to solve a mystery. Well-developed, varied characters solving things with skill and teamwork.
-Paladin's Grace, by T. Kingfisher, and in fact pretty much everything she's published under this pseudonym. Paladin's grace is a cozy little romance with berserker paladins and severed heads. Nine Goblins is a fun and funny short, Swordheart is excellent and made me laugh out loud several times, and now I'm neck-deep in Clockwork Boys. So check out any or all of them and see if they're to your taste.