New Birmingham owner Carson Yeung will hand McLeish a massive £40million to spend on new players.
Janko has previously been linked with Bolton, Celtic and Fulham.
“Janko is on a real hot goalscoring streak,” McLeish told the Birmingham Mail. “He has a big presence.
“He’s maybe not yet the same kind of level as Peter Crouch, he’s trying to be that kind of player.
“These players like him are out there, but can we get them to come to the club? That’s the question.”
McLeish does not believe the club are capabel of signing players such as Wolfsburg duo Edin Dzeko and Grafite and Hoffenheim duo Vedad Ibisevic and Chinedu Obasi, who have all been linked with Birmingham.
He added: “If we get to an Everton status in years to come then we could entice the Dzekos of this world.
“There are some hidden gems out there who won’t cost lots of pennies, but you’re probably looking at £15million for Dzeko, Grafite £10million. The Hoffenheim strikers would probably cost £10million plus as well.”
