14 [Similar Anime] Like Uchi no Ko no Tame naraba, Ore wa Moshikashitara Maou mo Taoseru kamo Shirenai.

Both revolve around a man taking in a daughter who has been abanded. Both show difficulties of being a father and the sudden life changes (good and bad) they grow accustomed too. Both are funny, heartwarming, and enjoyable to watch. The main difference is Usagi Drop is a modern SoL and the other is Fantasy with the child being a devil. If you liked one of the series, you'll likely enjoy the other.

The setting in both series is similar: a male protagonist finds a little child and starts to take care of her. Both are very heartwarming and follow the adventures of the "dad and child". In both their bond looks strong and in "Uchi no Ko no Tame naraba, Ore wa Moshikashitara Maou mo Taoseru kamo Shirenai" it´s very nice to watch their bond to get deeper and see the loving environment around them.

Both anime are about a dad taking care of their daughter. Both are somewhat food-centric and have a lighthearted and heartwarming style.

The main characters of both shows (Latina and Myne) are young, cute girls who are out of place in the setting of the story. While Latina's personality is sweeter and quieter than Myne's with her tendency to leap before looking and her occasional pouting, they share a determination for their goals. The shows are set in Middle Ages inspired, pseudo-European worlds with magic, and both girls have protective family and friend characters around them. There are some similarly-themed tensions (don't want to give any spoilers), and overall these are light viewing experiences w/ some heartfelt moments and comedy.

They both have a guardian character that looks after and takes care of the daughter character. However in Maou-sama, Retry! The demon and human roles are flipped where the guardian in Maou-sama, Retry! is a "demon lord" and the little girl is a human and in Uchi no Ko no Tame naraba, Ore wa Moshikashitara Maou mo Taoseru kamo Shirenai the guardian is human and the little girl is a devil.

Sure, one of these R rate ecchi almost harem romance and the other is family friendly fluffy ball of cuteness but... MC adventurer takes care of demon/devil girl and doesn`t really adventure. Both are basically slice of life in fantasy setting.

Both anime are about the relationship between "dad/ guardian" and daughter.

Senko-san and Uchi no ko no... are both series which will heal your soul just watching them. They are pretty much spiritual siblings.

Are you getting tired of generic isekai/fantasy anime? Well too bad these are two very typical isekai anime with overpowered MCs living in another world and lots of female characters.

Both MCs here adopt a supernatural child-- and have to learn from scratch how to raise them. Both have a sweet, charming disposition and are part of Prime Minister's Abe quest to get the Japanese to procreate and have kids.

Strong guy that gets into fights frequently adopts a demon child.

Both are shows about a guy in his late teens taking care of a kid that lost his/her parents. In Gakuen Babysitters the older brother takes care of his younger brother after the death of their parents, in If it's for my Daughter... an adventurer takes care of a devil girl he meets in the forest after her father dies.

If you found yourself a little disappointed by the immaturity of this series (especially if you know how the novel eventually progresses), then I recommend you try Maquia. Similar to UchiMusuma, it is about the relationship between a young person who finds an abandoned child and attempts to raise them (a mother and son in this case). Also, like Latina, Maquia is from a much longer lived race than their human companion.
From there, Maquia takes a much more complicated route, exploring the real pain but also the real joy such a relationship might bring. I don't begrudge anyone who likes the easy resolutions of UchiMusume but if you found it a little off-putting or something of a let down, Maquia might be more up your alley.

Protagonist takes care of absolutely adorable demon child that apperas out of nowhere.