The Tottenham striker was priced out of a move to City this summer.
Goater told Casumo: “I think the Harry Kane train has moved on," Goater told Casumo. “Next year he'll be another year older. Haaland would look to be the more likely option for next summer. If City need me to speak to his father, I'll have a word! He's phenomenal.
"When Borussia Dortmund played against City, there were two or three occasions where he was able to show his pace and his threat. I just sat there and thought 'Wow, this guy has got incredible pace and an eye for goal'.
“One thing you can't defend against is pace, he's a really exciting player. With Alf-Inge (Haaland) having already played at the club, it seems like a natural fit. Haaland will know the DNA of the club, having heard about it from his father as a youngster. It would be an excellent fit and something City could be working on for next summer."