You do need a strop. I would purchase a middle of the road. Mid grade strop.
Learn it and after a year or so, ask what do I like?
Do you like brushed cotton, or vintage linen?
You should learn what you like before you go all in high end strop.
I know I feel a better shave post stropping. I nicked up a few strops. Figured out my likes, and dislikes.
Invested in my favorite and am watching it patina. No need for another.