Tetrisly - Starter kit for design systems and wireframes builder (Sketch/Figma)
Theme Forest - The #1 marketplace for premium website templates, including themes for WordPress, Magento, Drupal, Joomla, and more. Create a website, fast.
Material Design Icons - 750 Free open-source glyphs by Google
ThemeFuse - ThemeFuse is a store that provides high-quality designed WordPress themes to let you stand apart from the crowd.
React Rainbow Components - Build your web application in a snap.
ThemeGrill - ThemeGrill is an online marketplace that develops and sells WordPress themes and plugins that you can buy to create professional websites for businesses, magazines, and blogs.