So I've been watching a ton of videos lately from the guys over at Spectre Sound Studios (youtube link) and they're always using a distressor compressor on just about eveything, and it sounds phenomenal. I realized there is a freeware VST that is pretty great at duplicating the style of sound you would get from a compressor. Grain of salt, this is free vs the $1300 outboard unit, but I've been doing some work with it on some of my bass guitar and vocal tracks and it definitely kicks the crap out of the compressors I've been using which cost quite a bit more than free.
Honestly it might be the best VST compressor I've ever heard, and it's free.
Download link: Download Free Distressor compressor clone plug-in: Modern Deathcore by Antress
What's a distressor compressor? Here's a good speech demo: