Need some Manga suggestions (not anime '-')

So, i've been dragged into the world of romance manga and i'm looking for something to read (please make sure the Manga is completed (don't wanna wait years for a new ch if it's kind of dead)

I've been reading all the popular ones (Kimi no iru machi which finished, Nise Koi, Kyou Koi wo Hajimemasu and other)

I need some suggestions, something with romance in-general and all around fun to read or enjoyable to my perspective

I don't mind sad endings or what ever, I just want something to read to kill my spare time that I have other than playing osu :)

Thanks

Masturbation Master Kurosawa.
(Am not kidding)
Its a little like death note but with masturbation, contains no h or anything.
Not romantic heavy but its a enjoyable read.

to-love-ru
ichigo 100%
mel kano
ore ga akuma, aitsu ga yome de
sekirei
the world god only knows
unbalance x unbalance
wagatsuma-san wa ore no yome
Working!!

not all of them are full romance, they just have some romance elements.

kimi no todoke

Iris Zero It is very good! Please do take the time to check it out! ;) It is by far my favourite romance Manga! :D

Not romance but Yotsuba is extremely hilarious and a nice read for when you are in a light mood.

Marchstory is also one of my favorites (action/ horror/ romance type one), but there is only 1 volume online. I bought the rest.