Collingwood, Hawthorn, GWS, Melbourne, Essendon and West Coast all have open spots on their list going into 2020.
The Herald Sun is reporting that the Pies could give a lifeline to veteran defender Lynden Dunn.
The Pies delisted Dunn, but he could return thanks to the AFL’s supplemental selection period or mid-season draft.
Melbourne has former Docker and Sun Harley Bennell training with the club and will hand him their final list spot in the supplemental selection period if he proves himself training over summer.
The Eagles have been linked to delisted Carlton livewire Jarrod Pickett.
The small forward suffered multiple serious injuries in successive years and was never able to show off the talent that saw him taken at pick four in the 2014 National Draft.
GWS could potentially leave their list spot vacant, while Hawthorn may bring back Darren Minchington following his delisting.
Minchington has been training with the Hawks over summer.
Teams with an open list spot will get the chance to add players in either the supplemental selection period or the mid-season draft.