The 22-year-old spent the second half of the 2023-24 campaign on loan at Fulham, featuring on eight occasions for Marco Silva's side.
Broja is currently with the Albania squad at Euro 2024, and he led the line in his country's tournament opener against Italy on Saturday night.
As it stands, the forward will be back at Chelsea next month for pre-season training, but there has been speculation surrounding his future at Stamford Bridge.
According to Sky Italia, Milan will scout Broja during the European Championship, with the Italian giants considering making a move for him in the current market.
Broja, who has a contract with Chelsea until June 2028, has represented the Blues on 38 occasions in all competitions, scoring three times and registering one assist.
West Ham 'weighing up move for Arias'
Meanwhile, according to journalist Pipe Sierra, West Ham United are competing for the signature of Fluminense attacker Jhon Arias this summer.
The Colombia international's future is currently the subject of much speculation, with Crystal Palace and Fulham said to be keen to bring him to the Premier League.
Sierra claims that West Ham are also in the running, with the Hammers weighing up a move for him during the current market.
Arias has represented his current side on 168 occasions in all competitions, scoring 35 goals and registering 38 assists in the process.
The 26-year-old has a contract with Fluminense until June 2026, but he is expected to be on the move during the current market, with a switch to the Premier League thought to be likely.
Como 'keen on deal for Fulham's Lukic'
Elsewhere, Como are allegedly interested in signing Fulham midfielder Sasa Lukic this summer.
The 27-year-old was a regular for his Premier League club during the 2023-24 campaign, making 28 appearances in all competitions, scoring one goal in the process.
The Serbian has a contract with Silva's side until June 2027, with the option of a further 12 months, but there is currently speculation surrounding his future at Craven Cottage.
According to Toro News, Fulham are open to discussing a departure for Lukic, and there is strong interest from Como, who will operate in Italy's top flight during the 2024-25 campaign.
The report claims that Como are considering attempting to sign him on a permanent basis despite suggestions that he would only be allowed to leave on loan.
Lukic arrived at Fulham from Torino in January 2023, and he has represented his current side on 41 occasions in all competitions, scoring once in the process.