Smut that features (mostly) healthy relationship dynamics and/or does not romanticize toxic/abusive behaviors~~
Also includes BDSM that is portrayed relatively accurately.
[Some stories might have 🚩🚩 behaviors, however, they are either depicted in a condemning way, or are limited to a side couple]
Honorable mention to Full Volume (aka - I Can Hear You Without a Microphone). Unavailable here, but can be found on MangaBuddy.