Almost everyone starts backwards: downloading fifty plugins in the first month, piling them into a folder, and still not knowing which one to open when the vocal sounds dull. The catalogue isn't the bottleneck. Judgement is.
This library is organised by the problem each tool solves, not by brand. If you know you have too much low end, you go to the EQ category; if your vocal keeps jumping in level, to compression. Every entry is a legitimate download from the developer's own site — no forced sign-up, no crippled trials that expire.
Five categories cover the vast majority of mixing decisions. A parametric EQ to place each instrument in its slice of the spectrum. A compressor so nothing runs away or disappears. A reverb and a delay to build depth. A saturator for body and density without raising the level. And a meter so you're not mixing blind.
The hard part isn't installing them, it's knowing when each one applies. That's what Mix Diagnosis is for: you hear a real problem and pick the tool. And if you want to understand what each iconic plugin actually does inside — an 1176, a Pultec, an LA-2A — that's Plugin Quest.
A free EQ in the hands of someone who can hear a 400 Hz resonance outperforms the most expensive EQ on the market in the hands of someone who can't. Before you grow the catalogue, train the part you can't download: spotting frequencies in EQ Surgeon, and checking your mix balance against genre references in the mix analyzer.