Division Two side Essex have requested to speak to Nottinghamshire’s Alex Hales and Warwickshire batsman Varun Chopra, reports BBC Essex.
England opener Hales, 27, and Chopra, 29, are both out of contract with their respective Division One clubs at the end of the county cricket season.
Hales is England’s first-choice opener across all three formats after making his Test debut in December 2015.
Chopra has made 527 runs in eight County Championship matches this term.
He began his first-class career with Essex, leaving for Edgbaston in 2010.
A move for Hales would see him join the same county as his England Test opening partner and captain Alastair Cook.