I sincerely recommend the ones I have seen:

For characters and romance, I recommend: Sword Art Online (the characters are very romantic)

Guilty Crown (the characters are very romantic)

Dragon and Tiger (personal opinion)

Christmas Kiss (the characters are very romantic, but some of the heroines are not good-looking)

Sneak around, Naiya Sub (recommended, the character's love is very good and funny)

The Pet Girl of Sakurasou (not bad)

Sanka Reiya (the heroine is good-looking, the hero is ugly) Accelerated World ( The protagonist is good-looking, the male protagonist is a fat pig)

The world only God knows (not bad!)

The flower blossoms Iroha (encouragement. Love)

The Familiar of Zero (Although it is a bit H, but the love is very good)

Forest of Fireflies (drama version, beautiful and touching)

Original author, I have watched these. You should like it.

(Not copied, answer sincerely)

If you have any questions, you can ask.