good salary for renting alone?

I am 20 years old and currently live in a town in Victoria about 2 hours away from Melbourne.

I'm studying cybersecurity and currently looking at jobs in IT. There's none in my town so I'm looking to move to Melbourne.

Wondering what salary job I should apply for if I want to rent in Melbourne alone, and still have money to save.

I also go to the gym, so that'd be an expense.

I live with my parents so I don't have experience with paying for bills etc so I don't know how much it usually adds up to in total + rent.

Thanks.