CitizenRandom- if you are not in STEP already, you can't get into it, it is closed. Only 2,000ish people were able to get in, and all of them had to have been entered in the original Main Lottery.
The only option other than STEP is to watch the secondary market. Physical tickets won't be released until mid-June, as peoples plans change those should be popping up. Just be aware that the demand to go to Burning Man far outstrips the number of people allowed to attend by the BLM, there will be a lot of people looking. It will take patience and luck, but people are getting them.