SyMon is queued for analysis. Crawling candidates and ranking them takes a few minutes. This page updates itself when the list exists — you can also come back later.
What is known so far comes from the other direction:
These projects were analysed and named SyMon among their alternatives. The relationship is not symmetric — how SyMon rates them is a separate judgement, made when SyMon is analysed in its own right.
calls SyMon “Choose if you only need hardware stats monitoring and alerting in Go, but it's a narrower and less actively maintained alternative.”
:trollface: Self-hosted, lightweight server and website monitoring and O&M tool