I recently researched thisalternatives to glass for permanent framing/protection, and iI found that glassine paper is supposedly a good cheap alternative. I ordered it on amazonAmazon, but iI was very unhappy with it. It was barely transparent and the glassine obstructed the viewer from seeing my art and appreciating the colors and the beauty, it was like looking through a smokey window. So now i'mI'm looking for any other suggestions for paper that would protect my art and have a generous amount of transparency.
framing tag. Clarified the question based on OP's comment.