I built Telemetry Machine (https://telemetrymachine.com).
The TLDR is that if you like Honeycomb or Datadog but don't want to pay insane prices, you should check it out.
The longer story is that I love talking to SREs, platform engineers, etc about observability, so if you want to kvetch about it, please send me an email at jack@telemetrymachine.com!
My cofounder and I have been working on observability for a combined 15 years and we decided to take what we love most about all these tools. We've got the powerful querying of Honeycomb, the great UI of Datadog (though most users use us via agent anyway), and the speed of Clickhouse.
Check us out!