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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I don't have much experience, but from what I can see it does support controllers. If you controller provides tracking data then you must use OpenVR's API.
On the other hand I remember OpenVR being particularly hard, as the focus of this APIs is to provide freedom for custom hardware vendors, rather than ease of use for us DIY guys. In particular the lack of proper documentation is something that really bothered me. Also when I was researching this I came across this, but now it looks stale and unmaintained.
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