According to De Telegraff, Newcastle United and Atalanta have stepped up their pursuit of the defender, who has just over 12 months remaining on his current deal.
Norwich City and Fulham have also been linked with the Dutch youth international, whose form has helped Vitesse have one of the meanest defences in the Eredivise this campaign. Their 29 goals conceded from 31 games is second only to champions Ajax.
Rangers reportedly remain keen on the 22-year-old despite being well-stocked at centre-back with Connor Goldson, Filip Helander, Leon Balogun, Jack Simpson, loanee George Edmundson and long-term injury absentee Nikola Katic all signed up through next season.
Doekhi is a former Ajax B team star who initially rose through the youth ranks at Excelsior.