As far as I know, the "adhesive shit" (aka dry mount tissue) in a heated press is the best way, but you can use a "V-hinge" instead. This is similar to a normal T-hinge but it is completely hidden by the print. You can find detailed explanations along with pictures if you just Google "v hinge". Usually work mounted in this way has a mat with an opening large enough to leave the edges of the paper exposed, and the whole thing is framed behind glass. If you are not using glass long term durability of a paper print will definitely be an issue due to the access of curious fingers and the buildup of dirt over time. Perhaps someone else can advise on coatings as I never use them.
Edit: Note that hinging will let the print move or "breathe" slightly as varying humidity levels cause expansion and contraction of the paper relative to the backing. Without a hinge you can get wrinkles, sometimes serious ones if humidity changes dramatically.