Former Bomber Marcus Marigliani, James Magner and Michael Lourey will train with the Saints, while ex-Hawk Beau Dowler has also been invited by the Saints.
Dowler will join Sandringham as a recruit for next season regardless.
The Saints have also snared mature age recruits Ahmed Saad and Terry Milera in the trade period.
Collingwood will give Brad Dick another opportunity to prove himself, while Willie Wheeler will train with Richmond after an impressive season at Coburg.
PERMISSION TO TRAIN LIST
Adelaide – James Craig, Will Young.
Collingwood – Daniel Farmer, Trent Stubbs, Brad Dick, Scott Reid.
Fremantle – Clancee Pearce.
North Melbourne – Gavin Urquhart.
Richmond – Pat Contin, David Fahey, Glen Grgic, Ben Jakobi, Addam Maric, Leigh Masters, William Wheeler.
St Kilda – Ben Casley, Beau Dowler, James Hallahan, Danny Hughes, Michael Lourey, James Magner, Marcus Marigliani.
Adelaide: Ian Callinan, Sam Martyn (elevated to senior list: Aiden Riley, Matthew Wright)
Brisbane Lions: Josh Dyson, Brad Harvey, Niall McKeever (elevated: Mitch Golby)
Carlton: Mitch Carter, Levi Casboult, Ed Curnow, Rhys O’Keefe, Zach Tuohy
Collingwood: Paul Cribbin, Shae McNamara
Essendon: nil (elevated: Stewart Crameri)
Fremantle: Gavin Roberts (elevated: Nick Lower)
Geelong: Ryan Bathie, George Burbury, Jonathan Simpkin, Jesse Stringer, Josh Walker.
Gold Coast: nil (elevated Alik Magin)
Hawthorn: Will Langford, Tom Schneider, Derick Wanganeen (elevated: Luke Breust)
Melbourne: Michael Evans, Kelvin Lawrence, Daniel Nicholson.
North Melbourne: Majak Daw, Aaron Mullett (elevated: Luke Delaney, Cam Pederson)
Port Adelaide: Mitchell Curnow, Jarrad Irons, Tom Jonas, Daniel Webb.
Richmond: Brad Miller.
St Kilda: Warrick Andreoli, Daniel Archer, Tom Curren, Jackson Ferguson.
Sydney: Eugene Kruger, Dylan McNeil (elevated: Nathan Gordon)
West Coast: Anton Hamp, Jeremy McGovern (elevated: Ashton Hams)
Western Bulldogs: Jason Johanissen (elevated: Luke Dahlhaus, Matthew Panos)