I use 5 different Waves plugins which are low on CPU, cheap, and just sound great. These are all common Waves plugins that you can buy individually or get almost all of them in a bundle (which go on sale often!).
Studio legend Chris Lord-Alge (Green Day, Muse, Bruce Springsteen) is a master at creating epic depth and dimension in every song. And now he is giving you the key to that depth: his complete suite of reverbs and delays, in one epic plugin. 1e1e36bf2d