Earlier this week, Hearts confirmed the signing of Barrie McKay, the former Rangers winger who had been released by Swansea City, while St Johnstone manager Callum Davidson has admitted it is a market he is looking at following an injury to midfielder Cammy MacPherson.
As long as players are released from their contracts or free agents before the close of the transfer window they remain available for clubs to sign.
It is a market which has plenty of potential with a number of players who would be shrewd additions to squads in the cinch Premiership. There are individuals with Premier League experience in England or have proven themselves in Scotland already, while there are those who have performed well in Europe.
Scroll down and click through to see a selection of stars available on a free contract.

. (LtoR) Wales' forward Hal Robson-Kanu and Portugal's defender Bruno Alves vie for the ball during the Euro 2016 semi-final football match between Portugal and Wales at the Parc Olympique Lyonnais stadium in Décines-Charpieu, near Lyon, on July 6, 2016. / AFP / ROMAIN LAFABREGUE (Photo credit should read ROMAIN LAFABREGUE/AFP via Getty Images)
Hal Robson-Kanu in action for Wales. (Photo credit should read ROMAIN LAFABREGUE/AFP via Getty Images) Photo: ROMAIN LAFABREGUE

. Efe Ambrose
The Nigerian is a popular figure in Scotland from his time with Livingston, Hibs and Celtic. Experienced and versatile, he got involved in the coaching side of things at Livi. Photo: Craig Williamson - SNS Group

. Muhamed Besic
If a team are on the lookout for a combative defensive midfielder, Besic is a great option. Can play further up in midfield or at right-back but is at his best playing a more destructive role. Photo: Nathan Stirk

. Hal Robson-Kanu
The type of striker who is not prolific who ends up in Scotland. Has brilliant pedigree with plenty of games in the Championship and the Premier League. A hard-working facilitator who will be remembered for his wonderful goal against Belgium in Euro 2016. Owns a Turmeric company. Photo: Pool

5. Julien Serrano
The 23-year-old was released by Monaco in the summer following the expiry of his deal. He spent last season on loan at Livingston where he impressed at left-back and wing-back. Composed, good in the air and a useful attacking outlet. Photo: Rob Casey - SNS Group

6. Ahmed Elmohamady
The name will be familiar with most who pay attention to English football with nearly 200 Premier League appearances. The Egypt international is a player who is adept at playing as a wing-back in a 3-5-2- formation. Photo: TIM KEETON

7. Andre Wisdom
The 28-year-old would be an excellent recruit due to his quality and experience. Premier League experience with Liverpool, West Brom and Norwich, a spell in Austria with Red Bull Salzburg and nearly 100 games for Derby County. Strong and athletic, he would be able to play as a full-back or wing-back. Photo: Alex Pantling

8. Connor Wickham
A name many will be familiar with. Was seen as a striker with huge potential when he broke through at Ipswich Town. Sunderland paid £8million for the player but he didn’t reach the potential the club hoped. Injuries held him back and he has never hit double figures in a season. Has been on trial at Preston North End. Photo: Dan Mullan