Im 11 and my dad was born and raised in new York but came here to el paso Texas and of course he's a big New York giants fan and I want to buy him a Eli Manning jersey but it's about 100-200 bucks

How can I make money fast

That's more than most people make in a couple days. I am sure your dad would love your intentions but that is a little bit much. You could strive toward that by doing lawn work and odd jobs. I never buy anything at full price. I always look for the bargains.
I don't know if any of these would be suited to what you are looking for eli manning jersey | eBay
But I know your dad would be happy with whatever you give him.