movies/tv Lighthearted Animes?

[Castle Bleck 19,380]

That Time I Got Reincarnated As A Slime and its spinoff, The Slime Diaries.

[schizo 85]

I'm not sure if someone else has mentioned it, but Azumanga Daioh is my personal favourite lighthearted anime

[ChikaChan 7,326]

Slowly pulls up a sign saying Non Non Biyori

[TBD 17,256]

I love watch sport anime, I have few series as a recommendation from best to least best ( but still good)

• Ace of Diamond 
• kuroko no basuke
• yowamushi pedal
• Prince of Tennis
• Free! 

[Sunny Fox 5,952]

It's a thread from 2014, so might not be relevant now, but I'd recommend:

Miss Kobayashi's Dragon Maid
Full Metal Panic Fumoffu (only Fumoffu, though, the rest of the Full Metal Panic series can get pretty serious)
Konosuba (God's Blessing on this Wonderful World)
 

And of course, Azumanga Daioh. But you already knew that. Duh!