First of all, I love DEVICON. Good job!

Please add the following brands/technologies:

• Stack Overflow
• Go
• iOS
• W3C (World Wide Web Consortium)
• Sublime Text
• Brackets
• CodePen
• JSFiddle
• freeCodeCamp
• Stylus
• PostCSS
• npm (Node Package Manager)
• Yarn
• Ember
• Aurelia
• Redux
• Broccoli
• Mithril.js
• Chart.js
• three.js
• D3.js
• OpenGL
• Direct3D
• PhantomJS
• CasperJS
• Nightwatch.js
• GraphQL
• Riot
• Knockout
• Babylon.js
• KeystoneJS
• Hexo
• Redis Labs
• MongoDB
• Cloud Foundry
• Microsoft Edge
• Microsoft Azure
• Google Cloud Platform
• Electron
• Ionic
• PhoneGap
• Apache Cordova
• Firebase
• Magento
• Flask
• Laravel
• Webpack
• Ghost
• Unreal Engine
• CryEngine
• WebGL
• Unity
• MaxCDN
• KeyCDN
• Cloudflare
• Normalize.css
• Polymer
• Semantic UI
• Material UI
• MDL (Material Design Lite)
• TACHYONS - CSS Toolkit
• Animate.css
• Bulma
• Font Awesome
• Sketch
• Materialize
• Unified Functional Testing [formerly known as HP QuickTest Professional (QTP)]
• Selenium
• ElasticSearch
• Scrapy
• Tornado Web Server
• sqlMap
• Jenkins
• Ansible
• TensorFlow
• certbot

Reference:
https://github.com/kamranahmedse/developer-roadmap
https://github.com/topics
https://github.com/topics/css?o=desc&s=stars
https://github.com/topics/javascript?o=desc&s=stars
https://github.com/topics/html?o=desc&s=stars
https://github.com/topics/python?o=desc&s=stars
https://stackoverflow.com/tags