I'm trying to come up with some easy, low hanging fruit delivery flows that we can really quickly drop instrumentation on customer VMs.

have you checked this https://github.com/open-telemetry/opentelemetry-cpp-contrib/tree/main/instrumentation/otel-webserver-module

Hmm, that does seem pretty on the money

For SQL monitoring you can use this receiver - https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/mysqlreceiver you have to add a receiver in SigNoz opentelemetry collector similar to the instructions here - https://signoz.io/docs/userguide/send-metrics/#enable-a-specific-metric-receiver

Oh great! So if I need to instrument any of the applications that have a corresponding receiver, I can just deploy out these receivers and configure them to talk to the customer apps?

you don't need to deploy any receiver. you just need to add that receiver block in the opentelemetry collector config file - as shown here - https://signoz.io/docs/userguide/send-metrics/#enable-a-specific-metric-receiver