"Best is anti seize, but it's messy. If you get it on your clothing it's almost impossible to get out. It's best for chokes that are going to be installed and left in for a long time. Grease is a close second and I'd use it instead of anti seize if you plan on handling the chokes a lot. Any oil is a distant third, but better than nothing."
I googled "anti-seize" and got some options. Can you link the product and brand you would recommend for this?