Completely shameless here, but if I were to live in an isekai world for any length of time, I'd choose the world of Amanria from my Legend of the Otherworld Traveler novel I've been uploading here on Tapas. Partly because I know what the ultimate 'goal' of the story will be, and thus can be comforted by the reality that the world won't be doomed to complete destruction, plus, a familiarity with the 'mechanics' of the world would definitely give me a leg up.
Not only that, but the world I've created is, thematically, one of growth- not for its own sake, but for the betterment of all. Plus, Beastfolk who are actually beastlike, rather that Humans with animal ears? Absolute perfection.