Interest Stacks

Somewhat of a reverse harem and is based off the visual novel (strongly recommend you play it if you haven't). Mostly action focused with sprinkles of romantic interaction between Yukimura and members of the Shinsengumi.

Hijikata: cold exterior but deep inside he's soft (the main love interest in the anime, the romance picks up in s2 with a very spicy scene that will leave you weak in the knees)
Saito: stoic, protective, thoughtful, and kind (my favorite <3)
Okita: teases you a lot, immature, probably has bpd ("I can fix him")
Harada: romantic and protective (a ladies man)
Shinpachi: goofy and a jock type (has big muscles)
Heisuke: the youngest member, very sweet, protective (if you like younger men)
Sanan: cold and manipulative with no discernible soft side (if you're into that?)

If you play the VN you can romance any of them and more. I recommend Saito or Kazama hehe.

Apparently this is extremely popular so you've probably already seen it.

I didn't think the male lead would be that attractive at first glance but I was proven wrong very quickly. He's perfect (good at games and not interested in women). Reminds me very much of my boyfriend :3

NEED!! If you like really intense scenes you will enjoy this one.

A must watch if you like vampires and love triangles centered around the female lead. Full of intense scenes that will leave you wanting a vampire bf.

Fox boy that denies his romantic feelings for the female lead.

Not a whole lot of outright romance but a very strong enemies to lovers type relationship development. The ending was disappointing but I was hooked until then.

Reverse harem with a main love interest. The main love interest often teases the female lead and shows he cares about her through his actions.

The opposite of a slow burn- the romance happens very quickly. You probably won't like the second half if you dislike the male lead appearing to be interested in another woman.

The embodiment of the "man interested in woman but woman does not reciprocate" trope. Frustrating for some and attractive for others.

Shigure, Hatori, and Kyo <3. Kind of like a reverse harem in that the female lead is loved by all except not everyone wants to be with her.

The romance is a bit sparse but still rewarding.

Scratches that royalty romance itch and the male lead is dreamy. Some unexplained annoying stuff involving another woman kind of ruined the show for me but it can be overlooked.

Cold prince that slowly comes to love the female lead.

Arranged marriage. Protective male lead.

Did not know I could find fairies attractive. Don't worry, he's basically a human with beautiful wings. Doesn't like humans but the female lead captures his heart.

Puppy girls will love this one. It's sad at the beginning so be prepared for that.

If you care about age gaps and other weird stuff you won't enjoy this one. Male lead is overprotective.

One-sided for most of the anime and the male love interest is mean.