Unai Emery is continuing to bolster his squad in preparation for Aston Villa’s Champions League campaign, and agreeing on personal terms with Onana is anticipated to be straightforward.
Onana has played 72 games for Everton since joining from Lille for £30 million in 2022, including 37 appearances in the whole competitions last season.
Onana was among the players who played for Belgium at Euro 2024 this summer as his nation was knocked out by France in the last 16.
Meanwhile, Villa has already signed two central midfielders: Enzo Barrenechea from Juventus and Ross Barkley from Luton Town.