I just checked the JFK-CMN award space for January 2023. It might be phantom award space, but AA & Alaska mileage programs are showing the most matching availability and Asia Miles is showing around 60% availability for the same period.

Sample award booking date 1/9/23 (AA, Alaska and Asia Miles showing availability).







Surprisingly, Qantas, British Avios and Expert Flyer are NOT showing any available matching award space (checked for the date 1/9/23).






Since, AA award booking is free to cancel, I went ahead and booked the flight on January 9th for 2 business class tickets and it went through with no issues.

Few minutes later, I got the confirmation of flight booking.

So far it looks like AA/Alaska miles are showing expanded award space for RAM flights (compared to other Oneworld programs) and Asia Miles is the next best. I can't understand why these programs show available space when Expert flyer doesn't show any award seats.
But, none of these programs offer the 44K each way redemption as Etihad Guest, which I am eager to use one time. I will try to find RAM availability on Flyer talk for one day and call Etihad Guest to see if they can find the same award space.