I have a 2002 Honda xr100r and I want to upgrade the suspension so I can hit bigger jumps. What should I get?

I want more suspension than the dirt bike came with and I want to spend the least amount of money possible.

Really that is just a waste of time. You have a really old trail bike so spending money to upgrade suspension on it is just throwing money away. Get a bike designed to jump. Bbr do have upgrades if you are wanting to go that way anyway