Familiars/Animal Sidekicks

Office drone summoned to another world via popup on his work computer. Arrives with the job of tamer, and begins his journey taming slimes and learning OP magic.

Animal doctor summoned to another world to be a beast doctor. Doesn't seem to be OP, but can "tame" animals.

Man arrives in another world in the body of boy. Trains with an old elf and learns magic, and also get two animals as his familiars (the FLUFF is real!)

Dog trainer summoned to another world to raise a holy dragon. Cute.

MC is loved by spirits, which kind of look like mini garden gnomes with wings. On this list because she contracts two spirits that have the form of animals. One we don't get to see too often, but one is always around once it shows up.

Fairy's and animal familiars! So many cute sidekicks!! Honestly, this list was made for this manga!

Boy plays a game with his sisters, but due to a flaw in the software his avatar is a girl. Chooses "junk" skills, but learns how to play his own way and makes friends along the way. A fun read that makes you want to play this VR game.

A boy is summoned to another world to inherit a legendary group of magicians power, beast magic. His familiar is a gryphon created using his own magical power, and his super cute! OP MC, and OP sidekick.

man is summoned to another world with a unique ability that garners the attention of a wolf beast, an OP beast! There's also a slime familiar as well. The MC himself is not OP though. A pixie dragon has joined the ranks!!

MC is summoned to another world and get to request things from the god while doing so. Wishes to be liked by animals and to get a cute companion, ends up with a baby dragon!

Girl is summoned to another world by a creepy king, intercepted by that world's god, and has to figure out her way in this new world. She ends up making a contract with a winged dog, who becomes her familiar.