I just started in on
The Native Star by M.K. Hobson and so far so good. Its set in late 1800s California with Witches and Warlocks and things like Patent Charms via mail order and zombie controlling machines from Chicago.
Also just finished re-reading Sanderson's
The Way of Kings which has some heavy-duty world learning with its flora and fauna. Still low tech, if that is the OP's issue, but its absolutely not Earth. Plus its 1000+ pages!