Hello PakCoy, if you have utility/equipment and knowledge about mining, I suggest you choose mining, instead other options.
If you can't, you can choose to join on campaign.
That is the safest way to earn crypto.
The fastest ways are trading and investing. These are high riak action. Knowledge and experience are needed.
Regarding gambling, this is the bad way. Do not do this.
There are many options available better than gambling