As a long time maintainer, the foods I had to avoid during weight loss, are the same that I still avoid in maintenance.

I still don't eat pizza due to the white wheat flour...or pasta or bagels! My 3 old favs are gone from my food plan...forever!

But I have included other types of much better choices for me in the grain dept.
Ezekiel bread- sprouted whole grain and flourless.
Wasa Heart Rye- crispbreads
popped corn, fresh from the farmer corn of the cobb
brown rice

I have done all the experiments and found that for me and my body, I do well with a small amount of whole grain in my diet. Not all in the same day, of course! But I like having the option!!