Here are the slackbots I have made that are currently in production or were recently in prod.
kreva - automatically add a set of users to new channels in your slack workspace
grolf - made for hackclub arcade this bot integrates with GitHub to automically detect when you make a commit and then sends that commit to a slack thread
channel - create a user group from the members of a channel
abot - welcome bot for my personal channel (also includes assorted tools like a hackernews feeder)
the old man - introduction bot for the hackclub bag rpg (handled over 20k users joining slack and following the tutorial over a week long period)
spambot - a mini slackbot used to create the largest thread (that i'm aware of) of any slack workspace
ultimate slackbot template - a template I made to help with quikcly prototyping slackbots
swapper - switch profiles with someone else on slack!
crushDB - a slackbot made for the hackclub slack: it hashes the name and display name of everyone in a slack workspace and then auto cracks any https://www.zkcrush.xyz/ links
The Tavern - an interactive ai powered quest bot that integrates with hackclub/bag