Hi and Welcome to the forum. You've come to the right place to learn all you need to know before getting your bp.
My first bp was a normal female - they are very cheaply priced and a great first snake while learning to care for them. You wouldn't want to spend big money on a snake when you are not comfortable with how to care for them.
You may want to check out our caresheet on this forum - lots of good information on there.
Good luck with finding your first snake. As others have stated - be aware that it is very hard to stop at just one snake. I have 6 bps and 1 milksnake now and never intended to have more than one. lol