Since Traceloop is emitting standard OTLP HTTP (standard OpenTelemetry protocol), you can use any OpenTelemetry Collector, which gives you the flexibility to then connect to any backend you want. First, deploy an OpenTelemetry Collector in your cluster. Then, point the output of the Traceloop SDK to the collector by setting: 
TRACELOOP_BASE_URL=https://<opentelemetry-collector-hostname>:4318
You can connect your collector to Traceloop by following the instructions in the Traceloop integration section.