Kelly cost Juventus around €17.5m through a loan and obligation structure, but his consistent performances have raised his current valuation to around €30m.
No defender in the Juventus squad is considered untouchable as head coach Luciano Spalletti reshapes the backline, with Federico Gatti attracting Napoli's attention and Gleison Bremer also potentially available.
Jhon Lucumí of Bologna is understood to be the leading candidate to come in, and should that deal progress, Kelly would be among the most likely to make way to balance the squad and the books.
Former club Newcastle United and Nottingham Forest are described as particularly keen on the centre-back. Ipswich Town, managed by Gary O'Neil who worked with Kelly during his time at Bournemouth, have also expressed an interest in being reunited with the player.
For Kelly, a return to the Premier League would represent a significant step, and his elevated Juventus valuation of €30m — considerably above what the Turin club paid — means any interested club will need to commit serious funds.
The O'Neil connection at Ipswich adds a personal dimension to a transfer that would otherwise be a straightforward market transaction. Managers regularly seek to work again with players they trust, and Kelly's time under O'Neil at Bournemouth would give the Ipswich manager a clear picture of what the defender brings to a squad.
Whether Juventus's asking price of around €30m can be met by any of the three interested clubs will be the determining factor. Newcastle and Forest would be the more credible bidders at that level, while Ipswich's involvement may be more conditional on the fee coming down as negotiations develop.