There is VictoriaMetrics, which is also written in Go and shows much higher performance numbers than InfluxDB, especially on high cardinality data. See [1], [2] and [3].

[1] https://medium.com/@valyala/measuring-vertical-scalability-f...

[2] https://medium.com/@valyala/insert-benchmarks-with-inch-infl...

[3] https://medium.com/@valyala/high-cardinality-tsdb-benchmarks...