You didn't really specify if you have to use a special coin operated ball return mechanism. At my pool bar that we shoot out of during league nights, they have to open the tables, so that we can use Aramith Red dot cue balls that seem to hold up.
But, if you need to use a ball return, it my use a larger, heavier cue ball (some call it a tavern ball) that's 2 3/8 inches instead of the standard 2 1/4 inch aramith balls. It's going to change the game. A lot.
The table (Great American) can use either an oversize ball or a magnetic cue ball. I would love to use a red dot but alas the bar cannot open the table up as per contract with the amusement vendor.
The magnetic Aramith Cue Ball
is a magnetic ball, and is about as good as you can get, if you are using a coin changer return that is using magnets. This is really the best possible scenario for a bar box, unless they have a new laser system that can also detect a cue ball, But not may local watering holes I know of will invest in that kind of equipment.