Quote from covered_call:
You needn't 'know' anyone. Market Makers are obligated and incented by the exchanges to respond to RFQ requests. They have quotes...i.e. respond to 90% of all RFQ's within 10 seconds to get a 20% rebate on clearing fees from the exchange. The MM's don't know who is sending the RFQ.
Keep in mind, not all options strategies are assigned a market maker. The more exotic the strategy, and if it does not abide the CME strategy users guide, the less likely you will get a response. the MM's are assigned strikes and strategies to monitor so noone may be assigned a strategy if it is not standardized.