Animes like Joshi Kausei and Skip and Loafer

Im relatively new to anime, and I really like this style and genres (comedy-romance)

Although Joshi Kausei is a micro-anime with 12 episodes that are 3 minutes long and it has little to no dialogue, I still like the vibes.

Im currently watching Skip and Loafer and I'm loving it, the art style is so refreshing and overall its my type of anime.

Im looking for an anime that has this:

Teenagers, living school life.

Preferably short animes (12 episodes, 24 episodes, about that)

Preferably not too known / mainstream.

Newer (anything from 2015 and beyond is good for me, I tend to like modern animation)

Also (optional) that the anime is ongoing and / or has new season/s announced.

Ill be reading any suggestions :).