Tonagura!, B-gata H-kei Recommendations
Both contain a highly perverted character (B Gata H Kei = Yamada, Tonagura! = Yuuji) that are actually good at the heart. Both an ecchi/romance series.
Tonagura! and B Gata H Kei are very perverted, and both have a main character that is always making perverted gestures.
Both are ecchi/romance and contain perverted main characters