The 24-year-old has scored 30 goals and contributed 11 assists across all competitions this season, establishing himself as one of the Eredivisie's most clinical forwards.
His form has been mirrored at international level, where he scored both goals in a win over Portugal and then hit a hat-trick against Hungary to fire Ireland into the 2026 World Cup play-offs.
According to Estadio Deportivo, Betis are among those tracking Parrott as they look to add a new reference striker for next season. His valuation is reported at around €25 million.
The competition is considerable — Napoli, Bayer Leverkusen, Tottenham Hotspur and Ajax are also credited with interest, while Fulham and Wolfsburg have been among those mentioned in earlier reports.
Parrott joined AZ from Tottenham in July 2024 for €8 million after failing to establish himself as a first-team regular in north London, spending time on loan at Millwall, Ipswich Town, MK Dons and Preston before a breakthrough season at Excelsior convinced both parties a permanent move was the right outcome.
Tottenham inserted a 20 per cent sell-on clause in the deal.