I need help finding a solution for my need to keep track of my servers and web pages being online

Hello! I need help finding a solution for my need to keep track of my servers and web pages being online, and keep track so they don't go offline. Also want to see ahead of time if there is something that is starting to approach the limit in performance. And the same applies if there are any unnatural changes without reason.

After Googling around, I have found the below options… please help me, guide me to choose the best choice. And then I need help installing and configuring it on a VPS.

- Percona Monitoring and Management 2
- Zabbix
- Prometheus
- Icinga
- Nagios
- Checkmk
- Netdata
- Grafana
- Cacti
- LibreNMS
- Cabot
- Munin
- Monit

Or something else?