MALE MC, where he's the one who falls for the love interests first. Love interests dont see him in that way at all the first time. and tries to make them fall for him. It doesn't matter if he's not aggressive and really bad at romance, at least i want him to have the will to make it come true.
I've read many harem romance with male MC where Heroines are the ones that fell first and chases after the MC. I want something different this time.
Kimi no Koto ga Dai Dai Dai Dai Daisuki na 100nin no Kanojo
i think this fits ur criteria u prob know this already
The World God Only Knows
It's not exactly what you want, but it's similar enough to warrant a mention.
The MC "falls" for the love interests, who don't really care for him at first most of the time, until they do, and they join his harem.
Thing is, he doesn't really "fall" for them - he was tasked to court those girls for plot reasons that aren't really important. In actuality he is dense and doesn't really care about most of the girls, so the end result is similar to a generic harem. But the journey there is both entertaining and fits the description you asked for.