The best replacement for seat is booster seat.

The best alternatives to seat are rated as following:
★★★★★  booster seat
★★★★★  sit
★★★★  per server
★★★★  car seat
★★★  booster
★★  skoda
★★  chair
★★  convertible car seat
★★  5 point harness
★★  vw
★  seat
★  seed
★  waist harness kitesurfing
★  convertible
★  snugride
★  waist harness
★  high chair
★  trailer
★  aisle seat
★  saddle seat
  waist harness kite
  saddle
  swing
  dressage
  handlebar height
  britax
  bumbo
  bebe pod
  aisle
  infant car seat
  backseat
  table seat
  capsule
  high back booster seat
  convertible seat
  booster cushion
  potty chair
  5 point car seat
  mustang seat
  seat belt
  cushion
  pedals

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

Other search terms related to seat and their ratings are:
★★★★★ latch
★★★★ window
★★★ shoe storage
★★ base
★★ harness
★★ cooler
★★ latch system
★ built in seat belt
★ tether strap
★ backrest
★ safety surround
★ integrated seat belt
★ seatbelt
★ isofix
You have in mind a companion for seat and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of seat in all years. Click on graph for more.
seat
booster seat
sit