Slack Jira Integration - Easily keep issues moving right from Slack
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Sortd for Slack - Get Trello-style project boards right in your Slack!
Agile Tools for Trello - The one power-up all agile teams using Trello need
Troopr Assistant - The AI assistant for Slack
Elegantt for Trello - The most elegant way to manage your Trello projects