The out-of-favour trio will reportedly receive offers from Europe, with their NRL clubs keen to move them on to free up salary.
Cronulla’s re-signing of Jesse Ramien could force Dugan to make way, who has reportedly been told to explore opportunities elsewhere.
Packer and Reynolds have struggled for consistent first-grade appearances at the Tigers this season.
Catalans, Huddersfield, London, St Helens, Wigan and Toronto are the clubs reportedly in play.
It is understood that the trio are all keen on the move.