If your app is instrumented with OpenTelemetry, I'd really recommend something like SigNoz (https://signoz.io/) or Axum (https://axiom.co/) (or even https://baselime.io but their application is a mess to work with)

1. Axiom has a generous free plan (not sure if it's self-hostable) 2. SigNoz has an easy to work with self-hosting setup but also cloud solution.

If it's just logging, you can still forward your logs to these platforms but having OTel really goes a long way (from debugging and vendor selection POV).