The 31-year-old made his first appearance for Manchester City since 2016 in a pre-season friendly defeat to Borussia Dortmund, but says he wants to go to a club where he is the number one goalkeeper.
The England international has recently had loan spells at Torino and West Ham United, but was unable to force his way into Gareth Southgate’s 23-man-squad for the World Cup in Russia.
“I need to go somewhere permanent, I think that’s obvious,” he said.
“I did what I did in the previous two seasons because I needed to play to be involved in the World Cup – and look where that got me.
“I’m experienced. I’ve played at the highest level for a long time and done a lot of things in the game. I need to be an important player at a club and I think that can only happen with a permanent move.”