I originally joined Zira when I was looking for a reaction roles bot for my now dead server at the time, before Zira server was closed, shut down and made open source. I was pretty upset at the time as it was one of the better ones I knew.
I only found out it was actually back up and running again when one of my friends added it to their server last year, and when I joined back to see for myself, I was surprised how it became "Team Hydra" with these other great useful services, and wish I had of known sooner.