Teamtalk claims McCormack is ready to 'turn his back on a lucrative move to Asia' and is holding out for a British club.
Aston Villa are reported to have paid £12 million for the previously prolific 32-year-old in 2016, but freed him from his contract 12 months early after a disastrous Villa Park spell.
Nevertheless, there are a string of clubs - Charlton, Ipswich and Coventry, as well as Wigan Athletic and Reading - who appear to be undeterred.
Scottish sides are also considering an approach for McCormack, according to Teamtalk, although the website claims the player 'still feels more than capable of doing a job in the Championship or League One'.
Charlton recently joined Wigan and Reading in England's second tier, from which Ipswich were demoted last season.
The Tractor Boys - who are managed by the former Villa boss, Paul Lambert - will now face Coventry at league level, as a result.
McCormack has scored or made 183 goals in 352 Championship or League One games, but only managed four in 24 for Aston Villa across all competitions.
And although his wages could be steep, his lack of transfer fee makes the Scot less of a gamble for the likes of Charlton, Ipswich or Coventry.
Should your club take a gamble on the former Aston Villa striker?
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