TwoSix
Everyone's literal second-favorite poster
Whether or not they're worth it is generally driven by your appetite for a hard shift into polycule romantasy.I'd look to something like the Anita Blake novels for inspiration even if I'm not sure they're worth reading them after about book 10.
I'm trying to think of some fictional examples of a "reverse isekai" at a world level, but can't come up with too much (other than the previously mentioned Bright movie.) Maybe the Earth arc of He Who Fights With Monsters, which does have the concept of a no-magic Earth slowly gaining a magical field strong enough to support fantasy-character magic.