Where can I get a student loan where I don’t have to start paying it back until after I graduate?

I need a student loan for about 15k-20k.
I don’t want to have to start paying it back until after I graduate.
I also don’t want the loan to have interest on it while I’m not paying.

Any suggestions where I should apply for one??

(Also my credit is not the best either, it is probably good or fair)