All of these are quite different but have some aspect of romance I think. Sorry if they aren't to your liking haha
http://www.mangago.zone/read-manga/sukinako_ga_megane_wo_wasureta/
http://www.mangago.zone/read-manga/first_thing_i_do_when_i_wake_up/
http://www.mangago.zone/read-manga/secret_alliance/?263J
http://www.mangago.zone/read-manga/yes_my_boss/
http://www.mangago.zone/read-manga/run_away_with_me_girl/
Here some straight romance webtoons (completed ones)
http://www.mangago.zone/home/mangalist/685444/
Someone please give me something romance to read