Carburetorless
ArboristSite Guru
All the arborist ropes would qualify as "solid". For any given rope size, How tight they are wrapped, what color they are, how they are constructed (double braid, 16-strand, etc), what material they are made with, and what coatings they might have are what makes each of them different from the rest.
Focus on learning the construction and materials that each rope is made with, ignore the colors, and you will end up knowing what you like. Go to each manufacturers website, and they will tell you everything about each rope, as well as it's performance statistics. Stuff like breaking strength and elongation.
I've been looking at SherrillTree's climbing rope chart for a month now.