What is the most effective (social) platform for your product (non-ads)? do you know why?

I was looking at what's best external link drives the best conversion rate (30d time window) for our product (Fina), I think overall PH does a decent job, it makes me curious to post a question here: What is the most effective (social) platform for your product in terms of organic growth? And do you know why? I think many factors play a role, such as audience type, size of reach, relevance, ways you interact with the platforms, hence love to hear how you analyze your growth numbers to adjust your marketing/branding strategy. (in case anybody is interested, here was the simple sheet I was looking at for Fina: https://docs.google.com/spreadsh...)