At 30 years of age, and with more than 200 games of experience in the top tier of French football, the Malian is returning off a good season 2021/22 (three goals and eleven assists).
The Rennes captain is a far more affordable option - his market value is 10 million euros - than some of the others.
Barca chief Jordi Cruyff, according to Foot Mercato, is the main supporter of Hamari Traoré.
The right-back is still at Rennes after a busy summer, in which he attracted interest from Borussia Dortmund and Eintracht Frankfurt in Germany and Crystal Palace in England.