I think the trick is to avoid a lot of English/PrL players as they are too expensive. Scout in Serie A, Leaugue 1, Bundesliga, Eresdivision etc. and you will find good players for a reasonable price.
Another idea is scouting talents from other PrL clubs, but that is more risky IMO.
Another idea is scouting talents from other PrL clubs, but that is more risky IMO.