Honestly, I would recommend, if you have the attention span or don't mind older animation, some good 90s or 80s anime. The tone is usually more serious and slower, but if a calm and cool time is what you're going for stuff like Please Teacher, an anime about a 19 year old guy still in highschool because of his disease which causes him to go into comas and not age develops a relationship with his teacher who's actually an alien. Or You're Under Arrest about cute police officers. Or if you want newer stuff, School babysitters is about a kid who babysits I'm the school or How to keep a mummy, which has kids taking care of cute chibi monsters