The biggest problem is that there are no other strikers (under 28) on the market who are reachable. For example Harry Kane is a good player, but he will never leave Tottenham, same for Lukaku etc.
Morata is indeed not a leader, but maybe we can use Mandzukic as a striker and Morata as back-up?
Other options: Timo Werner (Leipzig), Martial (United, he isn't a starter but would cost us 70+m), Moussa Dembele (Celtic) and I see something in Cutrone, but it may be too early.