LibHunt - LibHunt tracks mentions of software libraries on relevant social networks. Based on that data, you can find the most popular projects and their alternatives.
GitNews App - Trending repositories from GitHub, HackerNews & Reddit
AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
The News 2 - Product Hunt + Hacker News + Designer News
GitNews Web - Trending repositories from GitHub, HackerNews & Reddit
Bynd - One app. All your favorite feeds!