If you're looking for anime similar to Koi to Senkyo to Chocolate, you might like these titles. All recommendations are made by Anime-Planet users like you!
The traditional girls-only Yuihime Private Academy is considering the possibility of starting to accept both genders and has thus made an agreement with a neighboring school to receive some of its students as an experiment to see the reaction to this adaptation. Shingo Iryu is one of the many students transferred for a ten month experimental phase at Yuihime Academy. He, his sister, and his fellow relocated colleagues are impressed by the sophisticated campus, but even more by the resistance of many students who don't want the boys over there.
Both settings are at a school for somewhat wealthy students, the male protagonist gets elected to be the class representative/run for student council president, a female protagonist has a mysterious hatred towards boys/chocolate and another heroine both have an adult relative working at the school. "Love" and "Lovers" being in both of these titles give it away that romance plays a big factor into the story, so I believe there's enough similarities between these two for you to like each.
Tomoya Okazaki is a third-year high school student who is generally bored with life and doesn't take his studies, future, or anything else seriously. One day, however, he meets a lonely-looking girl in the school courtyard, Nagisa Furukawa. She explains to him the source of her loneliness: she had missed a lot of the previous school year and thus is repeating her third year; everybody that she knew has already graduated, and she is lonely. Tomoya is rather indifferent at first, but decides that he has nothing better to do and spends increasingly more time helping Nagisa restore the school drama club. As his relationship with Nagisa grows, Tomoya begins to open up to various other people around the school as well...
Both shows feature a main male character with multiple girls who become infatuated with him, and in the end, a relationship develops with one of the girls. The romance is not the primary focus of either show, although it becomes an important element in the development of the characters. One focuses on creating a drama club, and the other on saving the food club.