Rithmic

For more details about the run options menu click this link:
https://youtu.be/zLOc4E7JxDM
Not sure whether you're non-pro or not? click this link:
https://www.cmegroup.com/market-data/distributor/files/exhibit-a-to-schedule-4-non-pro-self-cert-form.pdf
For more details on the different exchanges click here:
https://www.cmegroup.com/trading/products/#pageNumber=1&sortAsc=false&sortField=oi&cleared=Futures
Go to the official CME site:
https://www.cmegroup.com/markets/products.html?redirect=/trading/products/#cleared=Futures&sortField=oi