I recently read a few chapters of My fierce tigeress wife and want simmering similar, Mtl is fine. what I didn’t like was the initial ‘raped’ and FL’s attitude towards toward ML. Might have changed later in the story but i dropped after Monster start appearing
Kumo Desu ga, Nani ka? - FMC was reincarnated into a spider The Cold Regent Keeps a Fox as a Consort - FMC was reincarnated into a fox Meow Meow Meow - FMC is a cat
Dragon Dragon Dragon At the Northern Fort FMC is a fox cub Dragon-san Wants a Friend A Dragon's Curiosity
https://www.novelupdates.com/viewlist/10686/ List of non-human MCs. I personally recommend: Chrisalys - MC reincarnated as an giant ant. A Demon’s virtue - MC is a imp. Overlord - MC is a Lich, Game transmigration genre. Kumo Desu ga, Nani ka? - MC reincarnated as a giant spider. Another 2 novels, i read their mangas and liked, but i have no idea about the novels: Tensei Shitara Slime Datta Ken - MC reincarnate is a slime. Tensei Shitara ken deshita - MC is reincarnated as a sword.