[Question] Self hosted setup for monitoring Self-hosted services? - eviltoast

Hi all. I just set-up my first self-hosting server with NextCloud, Immich and a VPN server. I was wondering if there is a tool or layer of tools which would help me monitor my server and the services including running stats, resource usage stats, system logs, access logs, etc?

I read that Grafana Loki along with Prometheus could possibly help me with this. I just wanted to ask that - should I explore these two tools or do we have some other and better(suiting to my needs) tools? Please recommend Open Source tools only. Preferably Docker, or Linux based otherwise. Thank you :))