Newcastle centre Bradman Best says he wants the Knights to have the first opportunity to retain him, despite interest from rival clubs.
"I love the coach (at Newcastle). I want to sit down and give the Knights, Justo (Justin Holbrook) the first crack at it.
"My brother did just sign with Newy. So there's definitely reasons to stay."
The NSW Blues and Kangaroos representative became available to negotiate on November 1 for a contract beginning in 2028.
The Parramatta Eels are considered leading contenders if Best leaves Newcastle, while The Daily Telegraph reports the Dolphins are preparing to pursue him.
The Dolphins' plans could depend on the futures of centres Herbie Farnworth and Jack Bostock, both linked with moves after 2027.
Farnworth has attracted interest from the Sydney Roosters, while Bostock has been linked with a return to junior club St George Illawarra.
The Dolphins are working to keep Farnworth, but losing both centres would free significant salary-cap space for Best; losing only one could make a deal harder.
Selwyn Cobbo and Hamiso Tabuai-Fidow are contracted long-term, but the Dolphins would still need quality in the centres.
Best, 25, played left centre for the Kangaroos throughout the World Cup and helped them reach Sunday's final.