\o/ for putting black haze on your managa to read list. It really is good. Also rofl, I just wrote a mountain for recommendations. I put many of different genres, since it seems you are still exploring.

Here are a few recommendations for you based on what you wrote above. I have more if you want.

Anime:
- Ouran High School Host Club (School/GenderBender)
- Kimi ni Todoke (Romance/School)
- Natsume Yuujinchou (Yokai/Slice of Life/Feel-good)
- Hunter x Hunter (Adventure/Action/Fantasy/Coming of Age)
- Naruto (Ninja/Adventure/Action/Coming of Age)

Manga/Webtoon/etc.:
- Orange Marmalade (Vampires/Slice of Life/Romance)
- Beauty-Pop (School/Light Romance)
- Hana Kimi (GenderBender/School/Romance)
- Nukoduke! (Cuteness?)
- Gekkan Shoujo Nozaki-kun (Comedy/School)
- Oresama Teacher (Comedy/School)
- Tower of God (Adventure/Fantasy)
- The Breaker (Action/Character Development) [This one is a bit more intense than the others. There are fighting scenes with blood. While there are women who might look sexy, the story never goes down that route]

I love Fairy Tail! It is amazing!

Bruhhh
Well, I personally didn't like vampire knight all too much (Zero is really annoying to me)
But I see you're gonna read Horimiya and let me just say DO IT
I loved reading it and it's really cute

Also, idk but everybody should really read Owari no Seraph (Seraph of the End)
I guess it counts as a vampire-related thing and like idk I love it
It's kind of post-apocalyptic (scratch that, it's full on post apocalyptic) and idk I really really like the characters
(especially the vampires >~<)
The anime is currently airing too >~<

^^Crowley eeeeeeeeeeeeh
And Hetalia is really cute idk bruh
And yes yes yes YOU NEED TO WATCH SOUL EATER AND SAO AND FAIRY TAIL HOLY COWW THEY'RE REALLY GOOD

*cries because of the K ending*

*cries because is about to play Sweet Pool and has heard tales of the legendary heart- and feels-smashing game*

New "Anime of the week" is up-

I watched Claymore earlier last year, if I recall. :) I was intrigued by the manga and ended up watching the anime based on it. The ending left me feeling a bit disappointed. :c But I really liked the character development.

--

As far as anime recommendations...ehh. My tastes are funny LOLOL.
I'm extremely picky with my anime...did I even post in this thread before? /goes to check

Nevertheless, I'd recommend reading Tower of God (webtoon comic strip now, it's already far along in plot and I like it very much, tons of characters and a nice storyplotthing!).

For my animes...

-if you like food, I'm watching Shokugeki no Souma (Food Wars!)
-if you like music, I'm currently watching Hibike! Euphonium, looks very K-On-styled but I figure I should watch it since I miss band lol
-if you like sports, I'm watching Kuroko no Basket (3rd season, which spurred me to read the rest of the manga to completion); I also watched Free! (because trends lol) and while it has a somewhat thin plot, it's enjoyable if you like dudes lol
-if you like action/drama/thriller/idk, I finished Kiseijuu (Parasyte, short but nice plot), Death Parade (also short), and currently watching World Trigger (if this isn't PG-13 I don't know what is, but it got my attention)
-I like Magi, both an anime and a manga (the manga's ongoing, Magi stopped somewhere after 2 seasons? can't remember!), its a good fix for fantasy
-while I'm not big on MMORPG-themed animes (I don't watch them nor read mangas of em), I heard Log Horizon, SAO, and there's some Dungeon ni Deai (insert long name here) were good animes to keep in touch with.
-for harem-y stuff, I'm currently watching Akatsuki no Yona. The...plot's moving along, I suppose.
-for gory thriller, I liked PsychoPass's 1st season. Idk about the season now.
-Orenchi no Furo Jijou is cute -- a dude and a merman living in the dude's tub. 5mins per episode, very short.
-No Game No Life was cool, watched it within 2 nights with a bag of chips, was entertaining

Oh yes No Game No Life was very fun
And indeed, you seem to be picky with your anime, I'd say you prefer anime with plot?
(lol, none of the animes in your list were similar)
I'm glad you watched Death Parade, you enjoyed it?
(eh it's like one of my favorites)

You can say I do, yeah aha; if it doesn't have plot, it tends to have dudes, and if it doesn't have dudes/romance, it tends to have plot.
I don't tend to take well to shoujo anime with cutesy romance and stuff (like I've watched Aichi Kocchi, etc), but in the rare cases I do...iunno, I don't think there's a pattern aha.

I had a hard time following Death Parade's plot (because I assumed there was a plot! it was just...idk, I heard from a friend that Death Parade was basically an anime that spurred from a contest of making an anime from a set budget). The ending must've been the best, because I just liked how the Decim looked and reacted in the ending lol. Otherwise, I found it repetitive in dialogue, and I found more enjoyment in the side characters than the main characters. >A< Wish there was more of them than anything (i.e. the red-haired guy and the 2 other humans, and the rest of the staff besides Decim and whatshername).

Mm yeah I have to admit Ginti was entertaining and I found the ending of that high school girl unsatisfying. Her death was stupid though >~<

Decim reacting at the end was the highlight, I'd say
Idk I really liked the characters too, but the fact that most episodes were about unrelated people playing games was a con I'd say