The Celtic goalkeeper has seen Ben Foster return from international retirement to challenger to Joe Hart for the England No.1 spot.
Having worked hard to break into Roy Hodgson's squad, Forster wants to retain his spot.
While Champions League exposure with Celtic has got his foot in the door, the 24-year-old knows that playing every week south of the border is an advantage.
However, he has three years left on the deal he signed when joining Celtic in a £2million deal last summer after two years on loan.
And Forster is wary of making a move to a club where he would not be No.1.
He said: "I've always wanted to play in the Premier League and, hopefully, I'll get the chance. For me, I need to
be playing. I'd be a nightmare as a No. 2 goalkeeper because I want to play so much.
"It's important that I'm a No.1, and I won't be leaving to go and sit on the bench somewhere."
Forster appreciates the huge opportunity Neil Lennon has given him, but retaining his England spot is a massive part of his plans for the future.
The intelligent Geordie is not about to do anything rash, and understands playing Champions League football at his age is an opportunity not afforded to many keepers.
Celtic's ability to negotiate two qualifying rounds and a play-off to reach next season's group stage could determine what Forster does next.
He has used the competition as a platform on which to progress and catch the eye, and he told a London-based newspaper: "You want to test yourself around that level of player. If I want to hang around the England squad, I need to be playing in those games.
"I need that level of exposure. It's important and has benefited me massively this season."
Forster is aware he is being closely monitored, but is also aware any move has to be considered carefully.
"It's nice when people talk about you as it means you are doing well," he said.
"No doubt they'll be saying that about quite a few members of the squad with the performances they've put in at different times of the season.
"It's one of them. I've got three years left on my contract, so there's plenty of time.
"You've got to be playing. I'm ambitious and I want to stay in and around the England squad.
"It's important to be playing and playing at a good standard.
"It's got to be the right club. Why would you move to sit on the bench somewhere when I'm already at a good club like Celtic?
"But, there's plenty time left on my deal, so we'll just wait and see."