So basically you're looking for calculator website like whattomine? They also have an ASIC section IIRC. I tried to access the cn domain for Bitmain but it seems their certificate has expired. I'd stick with Bitmain.com as of now. You can also verify it through their social media afaik. As for Iceriver, the website on their social media is the .io one. CMIIW.
This leads me to wonder how Bitcoin miners making money these days. How anyone can start Mining Bitcoin with this profitability while the block reward will be divided after the halving?
From what I read online, most miners have cheap access to electricity, or they never sell their Bitcoin directly and speculate that the price will increase later on and then sell their mining results at that time. If you just start right now, it is naive to expect that your mining results would lead to profit directly. It is impossible unless you somehow spend nothing to get your RIG and energy.