I lost remote control for an Overhead Corp garage door model 45A. Which remote would work to replace it

I googled and found several, Google it, then Images and see if you can see yours. No matter the operator, I would find receiver and see if it uses DIP switches, or Learning Type. May have an After Market type. They do make Long Range Transmitters(Linear, for example. And if you have an Electric Gate, you could have a 2 pushbutton remote to control both?