If you're starting out making beats. I would look at the arturia line of vsts or find sampletank on sale. I am not endorsing NI stuff because for people that are starting out, their VSTs are a little more cumbersome and you may be using most of your time searching for sounds. NI is very powerful, but there's a little more of a learning curve when using the NI instruments.
Later on, when you get more serious I would then look towards NI stuff. I would strongly consider
Komplete 6 with Kore 2. But, I would not get one without the other. I have K5 and it's just too bulky without a patch librarian like Kore 2.
If you have an established sound you are looking for you may want to focus on VSTs that address the instruments you use the most. For example
Horns - First call Horns, CH Horns, Brit Horns, etc.
Bass - Trilogy, CH Bass, Bassis
Guitar - CH Guitars, Papen RG, etc
You will get less sounds per dollar, but they will be sounds that are more targeted to your needs and style.
peace