I know that the deep web mainly uses cryptos as a means of transactions for people who want to buy things over there, but what type of cryptos are mainly used when making those transactions? It’s just a curious question I have in my mind.
Those of them that are serious with privacy will be making use of coins like Monero and Zcash since those coins provide more privacy than most other cryptocurrencies there is. But Bitcoin is more popular and a lot of people make use of Bitcoin than any other coin there is, I hardly see anyone mention anything if not Bitcoin and sometimes Ethereum. So the main coins they will be using there is Bitcoin and Etheruem, and those that have Monero and Zcash will also like to do transactions with it.
So, when it comes to which coins are more popular, you have Bitcoin and the Ethereum, and when it comes to privacy you have Monero and Zcash. If there is any other, then I'm not aware of it.