No-one recommended Frieren or To Your Eternity? Those are two off the top of my head that seem aimed at a more mature audience, and avoid most tropes. Extremely high quality animes with great writing and storytelling. Even the elves act more human than most other animes.

Re:Zero is also good, but has a moderate amount of “underage grossness” in there you have to ignore.

This is a wildcard recommendation, but I initially thought Jobless Reincarnation was going to be garbage for the exact reasons you said. I actually ended up enjoying it a lot, though; from someone’s identical recommendation on this very site. But it’s hard to explain why you might like it without spoiling anything. Even though the MC is horrible at the start, I’d say he acts the most like a real human, especially in regards to growth and character development.