I'm not aware of many non-Lisp non-Prolog logic programming libraries like core.logic. core.logic can trivially operate on the terms of language which it is defined in. Meaning core.logic itself can be used for metaprogramming.

In my experience, metaprogramming is a wonderfully powerful utility for controlling complexity and confusion.

As far as the ecosystem - I used Python for a couple years, it's good. But the Clojure ecosystem is doing pretty darn well itself these days.