A long long time ago I tried creating a list of themes. Well while some of that list is still good, I figured what better time to build it up a bit! Here are a few more in addition to that list in the KB, got one you like? Post a link!
Elementor (Free/Paid) - This is a plugin to help build pages/site in any template theme
GeneratePress (Free/Paid) - Free version is great, works well with Elementor.
SiteOrigin PageBuilder - (Free/Paid) Great option for building out your content! I've used this on FlockHosting.com for years + it's add-on's work with Elementor now too!
Theme Forest Themes (Paid) - A TON of great themes!
ThemeBright (Free) - Some great looking themes! Easy to work with!
Weaver Xtreme - Suggested by John B.
ElegantThemes - A great set of themes, especially the Divi theme for crafting your own theme look. Suggested by John B.
Got one you like? Post a reply and I'll update the list as we get more suggestions!