If you plan on just renting and later finding a place, that makes sense and is a time-honored way of working into home ownership. Save what you can as your down payment will either allow you access to better housing or will lower your payments.
There are instances where someone will consider rent/buy. With that said, usually you need to look for a Place
to sell and ask the sellers if they will agree to the arrangement. Since it's more complicated most sellers do not agree to it. With that said, I have been in situations that it did work.
Good luck with your search!
The Sharon and karen home team
Keller Williams Suburban Realty