I'll just tell you the players I bought for West Brom on my previous save seen as we're similar teams.
André Bikey is a good CB from Burnley - around 4 million.
Jose Goncalves is also a very good CB. He's a free agent and quite young.
Cristian Portilla - good young center midfielder on the cheap, might even be able to get him on a free.
Leonardo is a left winger, brilliant for the money very good technically... Typical Brazillian.
Cristian Benitez is very good for the money if you need a striker. Around 2-3 million, young and great stats.
Amr Zaki if you can get a permit. I did on my first save but can't now for some reason. 1-2 million, brilliant target man.
If you don't mind buying off your rivals try and nab Youssuf Mulumbu from us if you need a CDM, very very good stats, should be relatively cheap (around 3 million) and quite young.
A couple of good future prospects are Chris Wood, Connor Wickham and Darnel Situ.
Whatever you do - KEEP Zeli Ismail. I don't know whether he is good on this game but if the hype in real life is anything to go by you should be able to sell him for millions later on in his career.