The 24-year-old centre-back has been the forgotten man at Tottenham this season and has made just four Premier League appearances.
He has made just two starts in the Premier League this season and played a combined haul of four minutes in his last two league appearances from the bench.
Tanganga is looking to move on this summer and Tottenham are open to offers for him this summer.
According to German outlet Fussball Transfers, Eintracht Frankfurt, Bayer Leverkusen, Union Berlin, Stuttgart and Hamburg have placed enquiries for him.
But it has been claimed that the centre-back would be keener on a move to a club in the Premier League.
He would prefer to stay in England as a preference and clubs in the Premier League have shown an interest in him.
Spurs are eyeing somewhere around €14m before agreeing to sell the centre-back in the next transfer window.
It remains to be seen whether the German clubs manage to convince Tanganga to consider a move to the Bundesliga this summer.