Creatine - Bulk Mono or you can buy a specific brand like NeoVar by AppNut or CreaPure by PP
Pre workout - Lit Up, Mesomorph, Launch, SuperPump are all my favorite. Just depends really what kind of pre workout you want. with creatine or without creatine. more of a focus or a strong stim....
drop the test booster and get BCAAs, fish oil and a multi.