Hi I am mining with Asic Antminer S9 12THS. The algorith is SHA 256 and I have 9 devices connected.
That's better.
Then, what you tried to ask? as I said above, are you tried to compare BTC and BCH mining? Or you tried to find other coins?
If you tried to find other coins than both you mention.So, you have 9 x Antminer S9, and you know that S9 operated on the SHA256 algorithm. Find SHA256 based coins wherever, Whattomine, Coinwarz, etc. Make a list then spend a few time to do in-depth research on that coin list. That named as a process and would improve your skill.