Goofy - A Mac app for Facebook Messenger
Chatterino - Chatterino is a chat client for twitch chat.
Chat for Mac - Facebook Messenger & Chat on your Mac
Chatty - Chat with strangers all around the world in Messenger
Messenger for Desktop - A simple & beautiful app for Facebook Messenger.
Restream Chat - Restream Chat is a versatile software that permits you to streamline multiple chats in one place.