RightGIF - Less noise, better GIFs. A better /giphy for Slack.
BeatMix - Enables Shuffle and Radio for multiple artists in Spotify
Firesong - Giphy for Music in Slack w/ Emoji Search
Playlist Machinery - Tools that help you create & organize your Spotify playlists
Slack Meme Bot - Spice up your team conversations with memes
Slackbox - Spotify playlist collaboration through Slack