The best alternatives to Modern Orange are Boreal, HNBuddy, and Hackerloop. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Modern Orange?
Hurree— The smarter, simpler way to analyze your data
Hackerloop is a new alternative client for Hacker news that enhanced the user experience. It contains a light and dark theme for both user types and a responsive UI that can be used on all screen-size devices.