The Holland U21 international has seen his future speculated on for some time, with a transfer having been blocked during the January window.
It is now being reported that Gronigen will relax their stance over the summer and open themselves up to offers.
A move to England would be Van Dijk's preference, and he is expected to have plenty of options to choose from.
His agent claims clubs from the Premier League and Championship have already expressed an interest, with Brighton and Cardiff said to be leading the chase.
Henk Maarten Chin told Voetbal International: "The Eredivisie would be fantastic, but England is the best option. His playing style would fit there.
"There are many Championship sides interested, but there are also clubs from the Premier League that are following him.
"He is ready to take the next step."