Hello everyone, I'd like to know which of these two options is best to freeze my cryptos, which of these two recommend me? Based on your experiences, what is the best? thanks in advance 
If you have only Bitcoin and want to freeze it to it's dollar value for a short time, I would recommend you to use Bitmex or Debitit contracts, shorting.
I'm not a fan of stable coins, but most non-problematic for me is USDC.