Shimanami Tasogare
By the mangaka who created 'Nabari no Ô'. They themself are x-gender, (is that the same as agender?), and asexual, apparently, so know first-hand both the internal struggles and the societal pressures faced by such rl people in Japan. Note: This is NOT yaoi. It does have a little shounen ai, but the focus is on the struggles of LGBT+ people, rather than their romantic/sexual relationships. It was published in a seinen magazine, hence it's not meant to be fujoshi fapping material lol. I.e. Read this for a realistic and sensitive portrayal of LGBT+ people in Japan. After this, read something by Hagio Moto, whose works inspire this mangaka.
Obey Me
This is actually surprisingly good! I love dark & twisted stuff, but even I'm kind of shocked by how much I've enjoyed these first 7 chapters. It's honestly thrilling. The pacing is really good so far. That said, I prefer Warehouse, (so far).
Smells Like Green Spirit