It can easily be any coin from a long list of cryptocurrencies or tokens. At the moment it was an IQ Cash project, and it was more than a 10x price increase. There have been several such coins recently.
Even higher growth than 10x I would expect when bitcoin breaks the limit of 13k $ and higher. Then there will be bigger price increases. Ethereum is my favorite.
For me it is far, far easier for them to minus 99% of their current price than to go 10x for most altcoins. I would stick to those who have been around and if you type their name into Google you do not just see shill articles. This means only Ethereum,,, Monero,,, Litecoin and some others.
Everything else will be pure gambling.