The best replacement for napkin is tissue.

The best alternatives to napkin are rated as following:
★★★★★  tissue
★★★★  serviette
★★★  tampon
★★  skitch
★  shake shack
★  white napkin
★  towel
★  napkin
  luncheon napkin

Your alternative for napkin is not listed? Suggest!
Speaking about napkin, one probably shouldn't forget about napkin ring.

Other search terms related to napkin and their ratings are:
★★★★★ napkin ring
You have in mind a companion for napkin and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of napkin in all years. Click on graph for more.
napkin
tissue
serviette