If you're looking for manga similar to Maria-sama ga Miteru ~Haru~ Specials, you might like these titles.
Ume Daidouji is determined to make lots of new friends after starting high school in a new town, but her first day at school doesn't go so well. After school she starts a new part time job at an ice-cream shop. While distributing flyers and worrying about her new life she is hit on by some sleazy men. The night in shining armour who saves Ume is a young primary school aged girl called Momo. This is the beginning of their friendship, at least until Momo confesses her love for Ume...
Kanan and Iori are a couple with a strange relationship. Iori always asks Kanan to physically hurt her.