24/7 Discord Bot - 24/7 is a discord bot that lets you play songs on-demand or listen to a radio station all day long without ever having to stop.
MEE6 - MEE6 is a multipurpose Discord bot with moderation capabilities, leveling, Twitch alerts, and an easy-to-use online dashboard.
Zandercraft - Zandercraft is an amazing discord bot that includes musical playback and a bunch of other cool features.
OwO Bot - OwO Bot is a simple software that allows you to organize your discord server on the basis of topic channels in which you can collaborate, share your opinions, thoughts, and feelings with your community members.
Groovy - A dynamic language for the Java platform
YAGPDB - YAGPDB (Yet Another General Purpose Discord Bot) is an advanced configurable Discord bot providing a load of features for help with managing a server.