Vertonghen, 33, left Tottenham at the end of his contract and attracted widespread interest.
Italian clubs such as Inter, Napoli and Roma considered him, while Sevilla and Valencia thought about taking him to Spain.
Even Manchester City had some interest at one point, according to HLN.
But he is heading to Lisbon with Benfica, who are making a big splash in the market this summer.
Following his medical today, the Belgian will sign a three-year contract on Friday and become a Benfica player.
Vertonghen wants to play football in a ‘nice city and environment’, which has led him to Lisbon.
Benfica can offer Champions League football and with Jorge Jesus at the helm again, an ambitious project.