Im in my second season at Tottenham and in need of a Right Back as Kyle Naughton is pony and Kyle walker is just declining! I've got around 8-10 mill too spend
For that price I'm sure you can get Alex Silva from Atletico Mineiro. Depending how his career has gone so far in your save Mayke from Cruzeiro can be bought from around £8m I think.
Todd Kane (Chelsea) or Michael Keane ( Man United) are both under £2Million and usually turn out pretty solid. I had signed Michael Keane for £800k and 3 seasons later had teams like Arsenal,Newcastle,Southampton and Man United offering around the £18m mark.
Corchia should be available for cheap, and has an extremely high resale value. I got him for around 9 Million $ in the second season, and sold him for 76 Million $ to PSG with a 50% sell on clause in January 3rd season.