Hi Barbara. you won't find one without a broker. First, your price is prohibitive as Soho is quite expensive and considering your stated price, you are talking about a rental.
Second, you'll need to devote a large portion of your time in checking every real estate related site to find something that doesn't exist. Should you be so lucky as to find a bargain, you'll notice all the other renters waving money in their hands in the direction of the owner or agents representing the property.
If you've found a bargain, I can assure you thousands have as well. I'm sure you don't want to pay a commission, hence the solo approach. You may have to yield to the reality of the situation eventually. Good Luck.