I thought this was a misplaced audio microphone question. Please replace "Mic" in title with 'MW' or write out 'microwave oven.' I'm pretty old and don't recall anyone here or in my life saying or writing 'Mic' to mean microwave.

Have you asked an appliance store? With your dimensions, they should be able to identify possible brands.

AJ Madison is a good place to search based on dimensions and features.

GE Profile Countertop Microwave Oven - 12 1/8 H x 24 W x 12 7/8 D

https://www.geappliances.com/appliance/GE-Profile-1-1-Cu-Ft-Countertop-Microwave-Oven-PEM31SFSS

This microwave is made so that it can be mounted underneath a cabinet so it vents from below. What we did was cut out the bottom of our cabinet so that it vents that way. Here's a picture of the underside of it looking up. I can fit a full-size plate in it just fine.

It's just a regular microwave. I originally wanted a convection oven-microwave too, but they take up way too much room. I eventually replaced my toaster, air fryer, and toaster oven with this Ninja Air Fryer/Toaster oven. It folds up and out of the way, and it works great as a second oven. Honestly, I use it more than my regular oven!

Thank you all so much. I found and purchased a lovely Breville. After agonizing over the new -for -me instructions, I remembered how much I like simplicity. And that I had convection, and thus air frying capibility, on my viking ovens already. So, I returned the 400$ Breville and got the GE that’s so similar to my old one that there's very little learning curve. Yay! It has the added sensor and is a bit larger. I could elaborate on why the search was so difficult, but would just annoy us all. 😁

Here is our new GE . Must thank you all one last time.

Breville

and replacement GE

"Recommended clearances: 3 inches on each side, 3 inches on the top, and 1 inch in the rear."

-- Owners Manual (https://products-salsify.geappliances.com/image/upload/s--ApKhxgTp--/u1qbfistkxgxuikxhalm.pdf)