Both of them are good.
The deribit.com is relatively new and it is for a long term investments
The liberoptions.com is for short tem leveraged trading. You can mage 80% profit in few minutes.
For Deribit you need to be experienced even may be professional trader. You need some funds to do something serious.
At Liberoptions.com you can start even with pennys to get a taste and then gradually move to a serious investment.
Neither of them are Investment sites or have any kind of investment option. They are binary/Forex trading sites like so many others...
For sure you can make 80% or more profit on them in a few minutes but you can also loose the same percentage in less than a few minutes.
That's for sure, is not an
investment.
What is investment in your opinion then ? (Putting your money to a bank? Holding bitcoins and expecting that they will grow infinitely? )