Yes, for multiple hosts from multiple zabbix-servers on the one page.
We also found the Alerta software. It looks like it was done exactly for our purposes.
https://alerta.io/
Ya, we use Kong + an OAuth plugin for Nginx for non-prod, but our security team is weary of someone having access to write directly to prod.
>> Open Distro might be exactly what I am looking for. <<
I don't think alerta.io will work since it is mostly ad hoc debugging. Thanks for the suggestion, looks a lot better than Elastalert.