Not sure what your style is but my most recent suggestion has been Dorohedoro. Sorcerers rule one side of the world, and shove non sorcerers into The Hole. They hop in and out of The Hole whenever they want, experimenting on people as they wish. Main character doesn’t know why he has a lizard head, and is immune to Sorcerer magic. Gritty, unpredictable, great world building.
Another: Under Ninja. Japan is full of ninjas, and of course undercover ninjas as well, hence the title. Can’t say much without spoiling it, but the main character is in a high school trying to out ninja a rival clan that is undercover. Surprisingly serious, great animation, and a few gags.
In both, IMO, the characters are fairly grounded and act like real people would.
There’s a LOT in the show, I binged season 1 and came in right when season 2 started and ended this year. 2-3 years between seasons is going to be ROUGH to keep up with, but the world itself has so many layers it kind of reminds me of Fifth Element.