I'm guessing that you meant "popular seme".
So here is a list of popular seme and unpopular uke but they might not necessarily be labeled "ugly" in the manga.
http://www.mangago.me/read-manga/kaeru_no_prince_sama/
http://www.mangago.me/read-manga/kijima_kun/
http://www.mangago.me/read-manga/megane_to_koi_to_aoi_tori/
http://www.mangago.me/read-manga/porno_superstar/
You most likely have read this already but i still had to put Aitsu no Daihonmei - http://www.mangago.me/read-manga/aitsu_no_daihonmei/
Hidoku Shinaide if you haven't checked it out yet~
It's longrunning though, and the beginning is rapey.
oh right. sorry thats seme. thanks. ill check them out
You may have read this one too but still:
http://www.mangago.me/read-manga/never_understand/
yesss i read it. its sooo good!
yess i am reading it. and i love it. thanks :)
yaoi where the uke is ugly or unpopular but the cool popular uke fell in love with him. and tries to make the uke love him. :)))))))
(〜￣△￣)〜