I always start with Birmingham and i was able to loan Lookman to play IF on the left wing. He was very good for me both in the championship and when I loaned him again in the prem but struggled to buy him permanently.
Depending on their asking price, there are a couple of good players at Birmingham as well who could do a good job for you. Kieftenbeld was an incredible ball winner or b2b for me.
Che Adams was also very good in any attacking position. I played a 4231 and he played in any of the front 4 positions and consistently scored goals.
The best player by far for me though was Jota. He has just joined Birmingham so you might struggle to sign him. I've been in the premier league for 3 seasons now and he is still my starting AM. He finished the championship season with an average rating of 8.12 and was the top goalscorer and assister.
I don't know what the asking prices will be for any of the Birmingham players because I started with them but they did very good jobs for me.