Eliminating rear blocks on lift

Anyone know what can I do to eliminate my rear blocks on my 6in stage 2 pro comp lift. They added a leaf with the kit and blocks but will be looking to upgrade my rear suspension into something more dependable. A whole new leaf pack maybe? If so what would a good size. Not looking to make it higher necessarily just figure out a better and much more dependable rear set up. Thanks in advance

 

Don't know any alternatives to rear blocks at that height; maybe a change in Hanger/shackle points?
Never going that high due to Tacos not liking anything pass 3" as dependable (offroad application), but I am curious if there are alternatives.