Parallel compression for your drum even guitar, bass, vocal finally mastering. It is a combination of small thing. Don't try to make it loud watch your mater not to go clip or on your k14 mastering meter try not to inter 0 while you are mixing the drum only. after you added different elements like drum bass and other try to be on the ball park of 0 to 4 of k14 meter. However, if you need the volume don't reach to put your fader up reach for your interface volume controller use that one.
Stop collecting plugins and hardware. First understand the tool you got and then look for extension when you reach your limit.