What are some alternatives?
When comparing Slackmojis and Bitmoji for Slack, you can also consider the following products
Emoji Packs - Import emoji packs into your Slack and other chat apps
Genies - Digital clones that react to the news in real-time
My Slack Emoji - Turn your team photos into Slack emoji's
Humaaans - Mix-&-match illustrations of humans with a design library.
Slack Emoji Reactions - Respond to any message with an emoji! 🎉😻🙌
Bitmoji Chrome Extension - Bring Bitmoji to Chrome!