If you're looking for manga similar to Oh! My Goddess: The Adventures of Mini-Goddess, you might like these titles.
Yanou Maya, an office worker who's tired of her boring but hectic everyday life, meets a weak, naive young god named “Rinjin-chan." This is the story of her daily life with a god, being gently bossed around and healed.
Koha-Ace stars Kohaku and features characters from various TYPE-MOON series. It is drawn in a super deformed style, and it is a self-aware series that constantly breaks the fourth wall.
For the members of Fairy Tail, a guild member’s work is never done. While they may not always be away on missions, that doesn’t mean our magic-wielding heroes can rest easy at home. What happens when a copycat thief begins to soil the good name of Fairy Tail, or when a seemingly unstoppable virus threatens the citizens of Magnolia Town? And when a bet after the Grand Magic Games goes sour, can Natsu, Lucy, Gray, Erza turn the tables in their favor? Come see what a “day in the life” of the strongest guild in Fiore is like in nine wacky short stories!