Napoli are waiting for Danilo to terminate his contract with Juventus and aren’t pushing any other veteran defenders for now.

Napoli Ponder Putting Former Lazio Star Under Contract

Luiz Felipe recently rescinded his contract with Al-Ittihad and is looking for a new home in Europe, preferably in Italy, and Napoli have emerged as a possible landing spot following Alessandro Buongiorno’s injury. He's in the Peninsula waiting for a call.
Inter are seeking one extra man in the back to complete their defense. They are assessing a few options. They have signed Yann Aurel Bisseck this summer

Inter Eye Chelsea and Arsenal Defenders to Add Depth

Inter are seeking one extra man in the back to complete their defense. They are assessing a few options. They have signed Yann Aurel Bisseck this summer, whom they see as a backup in multiple positions. Matteo Darmian will start on the right-hand side
It is no secret that Lazio and veteran defender Francesco Acerbi have fallen through and Monza have emerged as serious suitors.

Inter Monitoring Talks Between Lazio and Veteran Defender

Francesco Acerbi has not made up with the Lazio fans following an incident in December, which could very well impact his future. The Biancocelesti have coped well during his lengthy injury-related absence. Maurizio Sarri has fielded a more dynamic defense while he was out. The Biancocelesti are headed for a massive defensive overhaul.