If you`re just starting out any stock compressor and eq will do. For example, FL Studio has a really great EQ that visualizes everything in a nice way. And you know, Fruity Limiter is also a compressor!
If you`re into french drums then DSP Nightshine is a must and it`s free! For synths I love XFer OTT, you won`t really learn compression on it but it makes everything sound lush!
When you`ll want to try the best, paid options, Fabfilter Pro-Q 2 is the best equalizer imo, Fabfilter Pro-MB for multiband compression and C2 for single band compression.
Also, Oxford Dynamics. And Maximus is a great tool!
If you want to colorize your sounds using 'classic compressors', those by NI and Softube are great: VC76, VC2A and VC160
Cheers
