I wipe them with a clean dry cloth and toss them in a zip lock bag (whole). I now have a food saver vacuum thingy so I wll freeze them first and then suck the air out.
I do that with tomatoes, peppers, blueberries, sliced zucchinis and much more and they all taste great .
I had so many tomatoes that I got to throwing them in freezer bags whole. I made sauce with them yesterday and they were still good. Peppers don't last long enough to freeze around here though.
I used to chop my peppers, freeze them on waxed-papers lined cookie sheets before transferring them to a mason jar in the big freezer. The bulk of my pepper harvest is chopped, dried, and stored in mason jars in the pantry. When I make vegetable soups, spaghetti, etc., I just pour the dried chopped peppers in.
I have a FoodSaver too. The last time I used it, it was making weird noises and not removing all the air. Guess I wore it out.