Unpopular decision, but i'd go for Jonathan David now.
Realistically we need to spend money elsewhere so picking him up on a free allows us to improve other areas of the pitch. On top of that, he's actually got a really excellent record against the big teams. His CL record is really impressive. 10 goals in 18, but look at the opponents he's scored against: Sevilla, Salzburg, Wolfsburg, Real Madrid, Atletico Madrid, Juventus, Liverpool, Feyenoord and Borussia Dortmund.
I can see him linking up really well with Cunha and Mbuemo. He's also an excellent penalty taker too which might be needed if Bruno is sold. Honestly, a no brainer for me.