Quote from gurlygirl
The only ones I can think of are-
100% Perfect Girl http://www.mangaupdates.com/series.html?id=6633
(doesn't kidnap her but asks her to marry him and she lives at his house as his fiancee)
Can't Lose You http://www.mangaupdates.com/series.html?id=6555
(engaged, but she is actually his real fiancee's twin who is undercover)
They are both by the same author and they both have guys who are really crazy over the girl, I liked both of them although Can't Lose You has less drama so I feel like its better--I really love this type of manga also and I find that this genre is particularly hard to find, which ones have you read in the past?
O, also Hot Gimmick http://www.mangaupdates.com/series.html?id=37
has a crazy in love guy, but he is pretty mean to the girl b/c that is his personality-they are just dating-, I really love when the evil mean ones fall in love though because they are so unsure of themselves in love since they have always been so cold...
I have read the 100& perfect girl and absolutely like it because those 3 guys are crazy in love with her.
I just recently read this ; FIRST GIRL ( so lazy to put the link, you can search it )
and those type ;
HANA TO AKUMA
HANA YORI DANGO
HAREM LODGE <- this one the guy are already her fiancee and super nice humble guy ever *recommended*
RENSOU NO ARIA
i think thats it cause like you said, there's not many manga with this genre T_T