You can offer your skills in services section if you have one.
If you dont have any skills then take time learning first on where you are good at and improve it. Graphic design is quite popular here though you need to exert an effort in order to stand out. When I was just starting online for an opportunity, I applied as a virtual assistant and requested to my employer to have bitcoin as payment and he agreed. He is crypto enthusiast thats why its not hard to convince him.