
If you're looking for manga similar to Masamune-kun's Revenge: Rental Boyfriend Masamune-kun, you might like these titles.
Ougonji Kogane has been absurdly wealthy her whole life, with the riches she obtained from the business she made in elementary school she has had everything she ever wanted, and now sets out to purchase romance.
The tale of a boy who falls in love "at no sight." It seems that everyone has met her BUT him.
Aida is a man with a decent appearance who fell in love with the class idol Yano Kokoro and changed his seat in class to get closer to her. He studied shoujo manga which (as he claims) all girls on the planet love and tries to use that knowledge to win over her heart. However, Yano is a realistic girl who doesn't seem to be too fond of that approach...
Confessing your feelings the girl you love is never easy. Even more so if she's one of the school's two most admired idols. Kobayakawa, now a high-school student, has been going to the same class as his crush, Kawai Yui, since elementary school. When he finally decides to call her out, he's so nervous that he ends up confessing to be in love with the school's other beauty, Kawashima Asuka,...?!
A boy who is a twin lags behind his overachieving brother in both academics and popularity. He proposes to the girl he likes, herself a twin, but had confused her for her twin sister. Embarrassed and in a compromising position, he agrees to help her to win the affections of the boy she likes, his brother, lest she leaks his botched confession to her sister, hampering his chances with his crush.
Shinjou wants to enter high school as a new man, since he had not been very popular back in Middle School. As he's trying to edge his way into society with his new look and personality, he happens to bump into Kurai Kako, a classmate from Middle School who had been just as invisible as he was. With her new look and personality, has arrived for just the same reason he has, and she's looking forward to snagging a boyfriend for high school. They'll just have to make a bet -- who'll get a boyfriend/girlfriend first?