What are the options for my body after I die?

For Jewish people, traditionally, there's no cremation. A Jewish body is buried in the ground. But we live in a world where cremation is becoming the norm and the stigma of being burnt, that was so alive after the Holocaust, has dissipated some. 

Rabbis who are on the traditional end of things will not participate in a cremation. More liberal rabbis will. 

When you say what can I do, when it comes to grief and bereavement, people tend to be more conservative than they are in other aspects of their lives because they want to do it right. At the same time, the rates of cremation continue to rise. 

There will always be Jewish support for how someone wants to dispose of their body because fundamentally Jews will not be abandoned as they die.

It depends on what state you're living in. In WA, the state congress just approved alkaline hydrolysis and recomposition as final disposition options. In all 50 states, body donation is legal. Local medical schools or universities will accept bodies for scientific study and usually when they are done, they cremate. And of course there's green and natural burial that is legal in all 50 states. Then there's the American way of death which is embalming and placing a casket in an outer burial container in a cemetery with a monument. Whatever gives you comfort is what you should choose to do.