RightGIF - Less noise, better GIFs. A better /giphy for Slack.
Deezer - Deezer is a music streaming app created in France. It is available in 180 counties and gets 16 million users a month. 6 million of the users have paid subscriptions. Read more about Deezer.
Firesong - Giphy for Music in Slack w/ Emoji Search
Mood Listener - Handpicked playlists to fit your mood.
Slack Meme Bot - Spice up your team conversations with memes
Quorus - A new way to listen to music through collaboration