We are deciding on the architecture of our tracing and logging infrastructure that will be part of SaaS Startup. We have been looking at a few solutions already (datadog, signoz, AWS XRay) though none seem ideal in terms of proprietary interfaces or large cost (signoz starting at $200 a month for their cloud offering seems kind of crazy to a small startup like us!). We essentially just want the flame graphs and some audit event logging to help debug issues within the system.
I would be very keen to hear experience from others about the stacks they are using, what they would recommend or disrecommend.