The best replacement for regular is premium gas.

The best alternatives to regular are rated as following:
★★★★★  premium gas
★★★★  goofy
★★★★  irregular verbs
★★★★  stiff shaft
★★★★  stiff flex
★★  irregular polygons
★★  synthetic oil
★★  diet soda
★  premium
★  irregular polygon
★  irregular shapes
★  premium gasoline
★  long suit
★  roth 401k
★  organic milk
★  greek yogurt
  goofy snowboard
  stiff shafts
  feminized seeds
  long suit jacket
  spa pedicure
  plus gas
  nph insulin
  menthol
  stiff shaft driver
  premium fuel
  permanent press
  decaf
  senior golf shafts
  stiff flex irons
  stiff shaft irons
  hybrid cars
  stiff golf shafts
  synthetic motor oil
  goofy snowboarding
  wide snowboard
  relaxed fit
  stiff
  permanent press dryer
  stiff golf shaft
  goofy foot
  stiff flex shaft
  kosher salt
  comfort pass tomorrowland
  waterproof mascara
  premium gas price
  decaffeinated coffee
  stiff irons
  jogging stroller
  irregular nouns
  high mileage oil
  supreme gasoline

Your alternative for regular is not listed? Suggest!
Speaking about regular, one probably shouldn't forget about nph insulin.

Other search terms related to regular and their ratings are:
★★★★★ nph insulin
premium gas
You have in mind a companion for regular and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of regular in all years. Click on graph for more.
regular
premium gas
goofy