The best replacement for pesto is marinara.

The best alternatives to pesto are rated as following:
★★★★★  marinara
★★★★  alfredo
★★★  pistou
★★★  aioli
★  basil pesto
★  tomato sauce
  chimichurri
  spaghetti sauce
  aiola
  sundried tomatoes
  basil

Your alternative for pesto is not listed? Suggest!
Speaking about pesto, one probably shouldn't forget about pine nuts.

Other search terms related to pesto and their ratings are:
★★★★★ pine nuts
★★★ pasta
★★ chicken
★ sundried tomatoes
tomatoes
You have in mind a companion for pesto and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of pesto in all years. Click on graph for more.
pesto
marinara
alfredo