Well, there are really only two viable choices worth considering. These days, you can’t throw a rock without hitting a business using Slack.
It’s everywhere, not because it’s the default chat application for Windows or Mac OS, but because it’s the best. The interface is clean, stylish, and straightforward.
You have your channels on the left, your direct messages directly below.
You also have Slackbot, which essentially amounts to Siri and Alexa’s less-helpful cousin.
Pidgin takes a leaf out of e Buddy’s book – it aggregates chat services from multiple third-party clients into a single easy-to-use interface.