Hazbin Hotel and Helluva Boss

Cartoons in Hell!

Hazbin Hotel (Season 1)

This violent animated musical about Lucifer's daughter trying to setup a hotel to redeem souls in hell is full of swearing and adult themes but also has some good musical numbers. As Juris pointed out, the best part about each song is that they actually advance the story in some way and the animation, while definitely on the cartoony side, is quite decent. Definitely NOT for kids and you'll need to watch the pilot episode on youtube but it still gets a thumbs up from me. Looking forward to season two!

Helluva Boss (2 Seasons so far)

Set in the same universe/hell as Hazbin Hotel this show (fully available on youtube) focuses on a corporation of lowly imps who act as assassins for hire. At least, that's what the first season hook is and when they get into fights it is gloriously bloody with smooth animation.

It also has musical numbers but less plot advance-y as Hazbin, and the focus switches to the characters early on, sometimes to characters not even in the main group, which kinda fizzles the interest for me. While this and Hazbin both fly the pride flag with very few straight characters, it's more in your face here because apparently that is where the main story lies (and not in the murdering business. Sad face). Still ok, and Stolas is a scene stealer, but Hazbin is better with its more solid plot (currently).

Lastly, because the focus for Helluva Boss is on the personal relationships and not a "plot" per se I think its main problem is the pacing, as suddenly all the other episodes are basically "filler". Cut out the excess and it will make the whole thing better. Currently I suggest: Pilot / (S1E6) Truth Seekers / (S2E4) Western Energy / (S2E8) The Full Moon. (S2 hasn't finished yet as of this post but I think S2E9 is also filler).