How to move from Australia to America permanently?

As the question asks, how do I move to America as a resident? I have done some research about visas. To go for a holiday from here to America, a visa is not needed. I don't have a job there yet, and am not planning for schooling just yet. I am planning to work there first when I find a job, and then think about attending university. My boyfriend has recently moved back to America (he is an American citizen, but had a working visa here). I will be moving and staying with him. But how does this work? What type of visa do I need? Please help. I don't know anything about moving. If there is any information you can provide for me, that would be helpful. Thank you.
How to move from Australia to America permanently?
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