ResearchRabbit is a “citation-based literature mapping tool” available online. The scope of such tool is to optimise your time searching for references as you start planning your essay, project or literature review. You start by using one or more papers (called seed papers), and the site will find more papers relevant to the topic of interest (which is dictated by the seed papers you previously selected).
ResearchRabbit tutorial
An overview of Research Rabbit by Roman Koshykar from Rochester Institute of Technology.