Not that I’ve come across, at least not for Spain.
I did research some years back, when I was in contact with a senior manager at Chowhound. I was urging them to develop their international boards, such as the Spain one, away from just being a place where Americans asked about where to eat in Barcelona, into a more embracing one (albeit still in English), where ex-pats livng in Spain or a much wider group of Anglophone tourists would feel at home. Bearing in mind the numbers of mainly north Europeans who live in or holiday in Spain, in seemed a golden opportunity, to grow the board rather than keep it basically relating to the handful of cities visited by Americans - but it came to nothing.
So, like you, I’ve come across mainly a few review sites but nothing more generally foody in any language.