Welcome to the group.
There is no such thing as the best. What might be the best for you, may not be the best for someone else.
Also what does quality mean to you? For some people quality means they are spoon fed the information with step by step details. For others quality means they are given some general ideas and a few ways to implement those ideas.
Here are a few suggested products:
In the Internet Marketing Black Belt section there is the Profit From PLR Course
The PLR Playbook and PLR Playbook Workshop
Product Rights: Personal Use
Added on: 08/27/2016
24 Hour PLR Cash Explosion
Product Rights: Personal Use
Added on: 07/07/2014
PLR Powerhouse
Product Rights: Private Label Rights
Added on: 08/06/2012