Yes a bit, broadly but not in depth.
Rio Ebro at Flix has a set of huge gates across the river and there is a fascinating stretch below there where you can trot little sub rivers.
You can get access to the Ebro in the towns of Amposta, Tortosa and Mora.
zander and roach and mullet as well as the widespread carp. Amposta is a good base to get access.
There is a large lake inland from Torrevieja in Murcia that has barbel and bass and some very long water snakes
The Tagus at Toledo has a large bend and a weir. Wall to wall carp as mostly out there.
Estartit there is a river the locals fish.
Girona has a sluggish river.
I never found much further South due to the rivers largely being dry for much of the year. (Ramblas)
I think the further North you are the more chance of fishing but you wont get away from carp anywhere I feel. Its not all the big lumps that are advertised in the angling holidays. There are smaller ones as well.
Not a clue about permits. Not admitting any more!