Kono Danshi, Uchuujin to Tatakaemasu.

This is a part of a series of stacks that are about artistic tendencies in anime (and that border the fine line between sophisticated and pretentious).

This stack is a work in progress.

Bibliography:
Bednorz, Maksymilian. “What is Sekai-kei? It’s Horseshit.” Bednorz: The Weeablogue. 26 July 2018.
Howard, Christopher. “The Ethics of Sekai-kei Reading Hiroki Azuma with Slavoj Žižek.” Science Fiction Film and Television 7:3 (2014): 366-368.
Tanaka, Motoko. “Trends of Fiction in 2000s Japanese Pop Culture.” Electronic Journal of Contemporary Japanese Studies. 14:2 (2014).
Thomas, Stefanie. “‘You Cannot See Yourself Unless There Are Others’: Sekaikei as Exhortation of Societal Participation.” The Phoenix Papers. 2:2 (2016): 31-38.

"Anime was a mistake. But these ones that KoriGoji recommended are pretty good" - Hayao Miyazaki. Yeah, a lot of my favourites aren't on here because they're cheap thrills, but this ain't about that!

These are some of the BL anime I’ve seen and enjoyed! I hope you find some interesting ones in here. I have some older one’s in here and in some of those there are dubious consent so fair warning for that. Make sure to check which one’s are which so that you aren’t blindsided by it. These aren’t in any particular order either. I hope you enjoy these!

Derived from AniFem's General Recommendations, Queer Representation Recommendations, Top 25 Anime of the Decade and Family-Friendly Recommendations

See the website for their pros and cons per title:
https://www.animefeminist.com/anifem-recommends/general-feminist-friendly-recommendations/
https://www.animefeminist.com/anifem-recommends/queer-anime-recommendations/
https://www.animefeminist.com/anime-feminists-top-25-anime-of-the-decade/
https://www.animefeminist.com/anifem-recommends/family-friendly-anime-recommendations/

See also:
Parts 2-7
https://myanimelist.net/stacks/17515
https://myanimelist.net/stacks/18757
https://myanimelist.net/stacks/18755
https://myanimelist.net/stacks/18995
https://myanimelist.net/stacks/18999
Manga Recs
https://myanimelist.net/stacks/17520
https://myanimelist.net/stacks/28358
https://myanimelist.net/stacks/28535
Chatty AF
Anime
https://myanimelist.net/stacks/22027
Manga
https://myanimelist.net/stacks/25862
https://myanimelist.net/stacks/25883
https://myanimelist.net/stacks/26994
https://myanimelist.net/stacks/27949

Here are some anime/donghua that were surprisingly enjoyable and have around or less than 100K members.

*I tried my best to pick only the ones that don't have unnecessary or bad fanservice, don't sexualize teens/children and don't have boring and overdone plots!

they're not related to each other but they sure have similarity

[orenchi no furo jijou isn't part of the kono danshi series but the stacks must consist of 5 items, so there ya go]

An assorted stack of anime series involving alien characters on Earth or set in alien planets.

For anime with sequels, only the first seasons of each have been included in the stack. The genres include (but are not limited to) Comedy, Drama, Romance, and Action

This is an Answer to your Questions for a G-Rated Show That Avoids Childish Content