I'd recommend reading the Alex Verus series. It has a lot of similarities to DF but set in England with a significantly lower powered protagonist. I really like the fact that Verus can't just blast his way through any fight, he only wins by being smart.
Also those books have been coming out once a year like clockwork (and 9 books so far).
There's also the Felix Castor series from comic writer Mike Carey although that one is currently on hiatus (he plans on finishing but the books didn't sell well, so he's writing a few other things first) so I'm not sure I'd recommend them right now.
I believe there was an intro in Brief Cases that specifically mentioned that he can't do work before and after a move. Since he just moved, I wouldn't be surprised if we don't see a new book until end of next year at the earliest. I've honestly made my peace with Jim's output slowing significantly. It's not like there's a ton of important hanging threads if we never got another book.