I have been to Spain several time. I love tapas.
My favourite Spanish food is calmaries. Where you get a soft ring from squid body in soft, batter, so looks like an onion ring. Rather than random tentacles.
Other Spanish food and drink I love
Tortilla (Spanish omelette). Good on it’s own or in a sandwich.
Creme Catalon: Spanish version of Irish cream.
Toffee: Another Irish cream type drink.
Quante tres. A Carmel liquor called 43.
Croquettes can be nice but can get some not so good ones
May have forgotten more good tapas; what have I forgot?