At this level (6th tier) its difficult tto help anyhow cause many players have quite random stats tgst change every game. Create filter that covers stats required for role you seek player set attributes to 9 or 10 and set that half of them are met. Get decent (15jca ) scout and aquire on free transfer whoever has most stars and scout says that consistency or injury proneness is not his weakness. If you find 2 simmiliar players with roughly same demands and abilities aquire more versalite one (one who can play more positions) important dont offer them long teerm deals you will rebuild squad every promotion