This season, midfielder Swedberg has scored four goals in eleven games in La Liga, having arrived in 2022 from Hammarby.
FotbollDirekt says interest is arriving from Ajax, PSV Eindhoven, Club Brgge and Osasuna.
And Celta would be willing to sell for 4-5m.
The 20 year-old struck in victory over Las Palmas last in front of impressed scouts.