Sport Bild report that Eintracht Frankfurt trio Daichi Kamada, Evan Ndicka and Filip Kostić could leave the Bundesliga club this summer.
SGE would command a fee of around €15m for Kamada, €10m-€12m for Kostić and €25m for French central-defender Ndicka.
Kostić (29) was close to joining Lazio in the summer and would have just 12 months remaining on his current deal at the end of the season.
Kamada (25) and Ndicka (22) also have contracts until 2023.
