Not food suggestions this time, but enzymes!
MOST acid reflux is due to a LACK of stomach acid believe or not... the good kind. Lack of all the enzymes one needs to prevent reflux. There are 3 that your body isn't making enough of, perhaps due to some med you take, or foods you eat, yes.

proteases (which break down proteins), lipases (which break down fats), and carbohydrases (such as amylase, which break down carbohydrates)

Buy them at a health food store... and ask for help in the strength and balance of them...I bought the vegetarian ones as I didn't need any extra chemicals to react!

There's a quick test to see if your reflux is from a lack.... though you'll think you're going to die for 30 seconds but then voila! you'll feel great.... take a teaspoon of apple cider vinegar. If you are lacking the enzymes, it will balance your stomach acid immediately (I always had to count to 30 to be sure I would live, because you feel like you won't lolol for 30 seconds anyway)...

My MD tried all sorts of homeopathic stuff on me... even DGL which was a waste of my time and money (deglycerized licorice?)

I can't eat but healthy raw foods 6 hours before bed. I must sit up after taking any medicine for at least 10 minutes.... if you sleep on your back, propped up or on your left side, you will have less issues while you figure out what is causing this and what your solution is...

(PS I don't eat fried foods, high fat foods, anything carbonated, if I do have coffee at night it's very weak and more psychological than coffee )

Try over the counter antacids for quick help on the road... but try them all, they are different. The colored ones, the slick coated ones do me NO good. Tums in any form doesn't do a thing for anyone in my whole family, but rolaids does. Go figure. The plain, white chalky ones (lol) generic from CVS or Walgreens do fine to carry in my purse in case of a stress chemical dump ... Pepto might help you... it's pink in any brand.