If you're looking for manga similar to Manabi Straight! Sakra, you might like these titles.
Kanade is a high school student who, due to various circumstances, decides to attend school in the country, far from any city. The series chronicles her humorous school life in this new environment.
Once upon a time there was a talking frog. This frog's name was Strawberry-chan. Strawberry-chan loved his boy, Akiyoshi, very much... but Akiyoshi liked nothing more than to use a straw to blow Strawberry-chan up like a balloon - much to the chagrin of Strawberry-chan. Akiyoshi's friends all feel very differently about Strawberry-chan. Some wish he were treated better, some really love Strawberry-chan, and one even wishes he was Strawberry-chan. With all of this love and abuse, will our frog even survive the first volume?
When Rameko Mitsurugi was rescued by Leo Jindai during an encounter with delinquents, she fell in love at first sight, so she joins the Second Manga Club because Leo is a member. However, unlike the other members, Rameko is a gal who knows little about otaku culture.
Morioka aims to become an ideal Japanese woman. She enters the home economics club at her school, but all the other club members are boys who have weird personality traits.