twrp help?

hey i was wondering if i could change to twrp from safestap, i am using a verizon samsung galaxy s4 l545 that has been rooted and running custom roms since new. right now i am currently running the safestrap version of stangfire 5.0 v2. ive never taken a over the air update from verizon ive always updated from different methods listed on xda or listed by the developers for their roms. i would like to be able to use twrp to have acess to different roms other then the safestrap ones but im not sure what is the best way to install it or what version to install. any help would be appreciated
thanks