Cronulla is preparing for its largest roster overhaul since 2021, with major changes planned for 2027.
The Sharks finished fifth before losing to the Sydney Roosters in the second round of the finals.
Code Sports reports Will Kennedy, Briton Nikora and Teig Wilton will enter the open market on November 1.
Not all three are expected to remain at Cronulla beyond 2027.
The Sharks are prioritising young fullback Liam Ison, who spent part of this season recovering from an ACL injury.
Kennedy considered a Super League stint in May, then signed a one-year extension in June.
After taking pay cuts to stay, he reportedly earns $350,000 this season and next.
Nikora's form dipped this season after years of high-level play alongside Nicho Hynes.
He represented Queensland Maroons this season and will play for New Zealand at the World Cup.
Nikora and Wilton could command $750,000 to $800,000 on the open market, adding to uncertainty over their Sharks futures.