I sold Parejo first season for half that amount. I brought in Rodri from Villareal, who has been amazing. I used him as a more defensive midfielder. Use Carlos Soler as the Parejo/creative type midfielder and you should be set. I sold Zaza for his release clause and brought in Vietto from Atletico madrid(he was transfer listed), as well as Alcacer who was also transfer listed. Wissam Ben Yedder(Sevilla), Guidetti(Celta vigo), and Juanmi(Sociedad) are also decent players who are fairly cheap on my save. They aren't elite but will get the job done. If you're looking for elite players then Pinamonti/Cutrone from the two milan teams can turn elite, also Moise Kean who is a beast. Luan from Gremio(i think) is also a decent creative striker.