According to a report from MilanLive, the prospects of signing their other two long-term targets, Otavio from Porto on a free and Marseille's Florian Thauvin are drifting away, and as a result they are assessing their options.
One of their key targets is Wamangituka, who has impressed greatly this season, being one of the main forwards at Stuttgart, along with Sasa Kalajdzic and Nicolas Gonzalez.
The Congolese forward has notched up 13 goals and provided five assists in 26 games in all competitions for Stuttgart, and he was named Bundesliga Rookie of the Month three times this season, in November, December and Feburary.
Whilst Wamangituka is predominantly a right winger, he is also able to play as a centre-forward, and Milan need depth in both of those positions, with the likes of Zlatan Ibrahimovic, Mario Mandzukic and Ante Rebic suffering from plenty of injuries, whilst Samu Castillejo and Alexis Saelemaekers failing to impress on the wings.
The 21-year-old seems to be the player to fit Milan's 'perfect profile' for a right winger, being young, talented and also having experience playing regular football in Europe's biggest leagues.