Dansai Bunri no Crime Edge

A list of anime containing ecchi elements, but are not tagged as ecchi by MAL. While the ecchi content may not be as prevalent or extreme as officially-tagged ecchi titles, there is still enough to be of interest to fans of the ecchi genre. Many of these register at least 1.5/3 stars on AniDB's "tag-weighting" system for ecchi.
Conversely, those who don't care for ecchi may wish to use this stack for cautionary purposes, as these titles may contain things like pantyshots, revealing outfits, incestuous overtones, oversized/jiggling breasts, swimsuit/lingerie moments, extended bath/shower scenes, lewd dream/fantasy sequences, innuendo, or general fanservice in an otherwise serious/"respectable" show.
Only the first seasons of franchises are listed. Some titles may (eventually) have additional details explaining why I've placed them on the list.

Part 1: https://myanimelist.net/stacks/24838
Part 3: https://myanimelist.net/stacks/26747

Here are Seinen series with the romance genre.

This stack is for Seinen series, where one of the main characters is female.

anime where some of the major characters have exceptionally long, pretty, black or dark-colored hair.
generally anything shorter than waist length won't make the cut, because there are so many.

(Un)finished Anime Adaptation - Finished Manga

Basically Anime adaptations which are there to promote the manga (in rare occasions the anime got canceled).
The anime in this list are not judged by it's adaptation itself, but a list to show where one should read the manga to get the full story.