There are plenty of them all over the EU. A great deal of Commercial Pilots spent their training in US building hours as a CFI. I would suggest that you contact the local flight school as they will probably know of someone that can complete a Flight review for you.
If no joy, I know a couple of ex NAC CFI's that are in Spain working Commercially whose details I would be happy to dig out for you.
Ninety-Nines (or Nikki for Alex
)