I don't know many...
Probably there isn't many
Besides what you already know...
There are a bunch of Spanish Civil War scenarios for TOAW. The big "whole war" one was great,
You can find them on the Rugged Defense scenary depot
And HPS recently (last year??) release a Squad Battles series game about the Spanish Civil War. Haven't tried it (i'm not a fan of HPS games...)
Of course on Europa Universals games Spain is also one of the big players.
Pyro Studios are spanish indeed. I loved their first game Commnados, now available at gog.com for just 5 bucks!
, bur Imperial Glory was kind of weak IMHO