Mattia Destro(Genoa on loan at Roma) is free after the first season, Victor Andrade(Santos) is only like 500k-1mil, Adam Campbell(Newcastle) and Zakaria Bakkali(PSV) are around the same price, also Mason Bennett(Derby) once I got him for 2.5 mil. They all become great players and offer good backup for the first few seasons. Hope it helps.