If you're looking for manga similar to Niwa-kun's Love and Rampage, you might like these titles.
Makita Tsukasa and Himuro Takashi have been best friends for a long time. All the girl suspect that they are gay because they are always together, but they both deny it. But when Makita get a confession, Himuro acts strangely. A rumor spreads around that Himuro and another guy kissed. Is this the truth or is it simply girls gossiping about what they wish to happen?
Childhood friends Tsutsuji and Kouji live in a tiny village. Due to the lack of students, their school's scheduled to be closed at the end of the year; they'll be its final batch. The two of them have always been together, but at this rate they may be separated after graduation...