Everton are making moves for Chelsea's Fikayo Tomori and Southampton's Mario Lemina, Sky Sports News understands.
Everton are in the market for a centre-back. Their first choice would be to re-sign Kurt Zouma but, with the deal stalling, they are considering England Under-21 international Tomori instead.
The 21-year-old spent last season on loan at Derby where he achieved promotion under Frank Lampard, who is now in charge at Stamford Bridge.
Tomori is a product of the Chelsea academy and, having also spent time on loan at Brighton and Hull in the Championship, he looks set for his first full season in the Premier League.
The Toffees also view Lemina as a potential replacement for Idrissa Gueye. Gueye is understood to be in the French capital to undergo a medical ahead of a permanent switch to Paris Saint-Germain.
Lemina has also attracted the attention of Wolves and Manchester United, and has been freed to speak to other clubs by the Saints this summer.
St Etienne are one of a number of clubs from France also keen, as well as further teams from Spain and Italy.
Compiled by: Emmanuel Ayoola Adetinkan