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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.
Not exactly what you're asking for, but you could check out this module and see if it helps you: https://github.com/zk-phi/indent-guide
highlight-indent-guides has a mode like the one in the screenshot, but by default it doesn't show up in org-mode. I haven't tried to see what it would take to enable it there.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.