I was wondering what would be the best lifting options for my 2001 blazer, want 4 to 6 inches

 

Check out the lifted section. Plenty of threads there asking the same question. Below is a thread listing all the kits.

https://blazerforum.com/forum/lifting-tech-44/start-here-lift-kit-list-16186/

 

2" shackles and tbar crank with 2'' body lift, cheap and easy

 

There are plenty of options depending on how much you want to spend and how involved you want it to be. The lift tech board is a great place to start. Figure out a price and how muh work you're willing to do, then get to reading!