If people like to know? Is Blake’s BBTC. The one that is more likely to stay. Made many years ago. From a developers and software engineerr on youtube professional opinion. 
Really not expensive today, but soon when more billions of people enter the crypto world, I am sure that would change. But for my young new crypto seekers. I highly recommend Blake’s BBTC. HERE TO HELP. I bought my share. A few mining pools run by the company, which is rare to none. Based in Sweden. Multipools. Wallets sync without problems. I had zero problems. I bought my share, buy yours and hold on to it. The amount is only 16 million. Bringing it to a great crypto value. Well up to you. They also had the Decred algorithm. So Decred first, than the next one? I think it will spike. Or one of his next cryptos. I read that new ones are coming. Wow! Some serious developers here. What you got to loose $20 dollars? The mining difficulty is getting higher. Only cpu or gpu. No sha 256 like bitcoin. Looks like they want everyone to have a shot.
Thank you
Mario