My personal favorite!
Despite being highly affordable, this plugin is an absolute joy to use – and it sounds great.
I initially opted for BIAS FX, which includes a ton of stomp boxes as well as a range of amplifiers and cabs.
But if you want the full range of models, grab BIAS Amp 2.
This was mentioned A LOT in the survey, and I have seen this software praised on a range of forums.
All in all, a great first purchase.