The advantage of zabbix is the templating and service discovery. You shouldn't have to add a new system to anything, it should just be found and monitored. Th

The advantage of zabbix is the templating and service discovery. You shouldn't have to add a new system to anything, it should just be found and monitored. The same goes for prometheus. Monitoring new things with zabbix is also "write a value to stdout". Using telegraf and prometheus you have the same flexibility. I think these days you can even scrape prometheus exposition with zabbix. There are plenty of footguns with prometheus and zabbix, but they take big scale to run into. But at the end of the day use what you're comfortable with.