Everton face losing Henry Onyekuru this summer.
Onyekuru's agent William D'Avila has confirmed Valencia, Sevilla and Real Betis have submitted offers.
Onyekuru spent last season on loan at Galatasaray and his agent revealed he could return to Turkey next season.
Speaking to Radyospor, D'Avila said: “For Henry, we've received many offers from Spain. Valencia, Sevilla and Real Betis have submitted their offers.
“Espanyol are also interested in him. But Henry is very happy at Galatasaray, we are working hard to keep him at Galatasaray.
“Everton are also looking to allow him to stay at Galatasaray. They have four similar wingers and they are happy with his progress in Turkey.
“Let's see what happens. This is a complicated process. But if you ask Henry he wants to stay at Galatasaray."