The best replacement for built in is portable dishwasher.

The best alternatives to built in are rated as following:
★★★★★  portable dishwasher
★★★  built under
★★  over the range microwave
★★  freestanding refrigerator
★★  built-in
★★  attached garage
★★  countertop microwave
★★  hd ready
★★  integrated refrigerator
★★  integrated
★★  counter depth refrigerator
★  built in
★  freestanding range
★  undercounter dishwasher
★  built under ovens
★  inbuilt
★  counter depth
★  cabinet depth
★  wifi ready
★  freestanding oven
★  built under oven
★  slide in range
★  freestanding wine refrigerator
  ready
  hdtv ready
  furniture
  free standing refrigerator
  freestanding cooker
  built up
  fully integrated refrigerator
  external flash
  bolt on
  wi-fi ready
  countertop
  freestanding bath
  cabinet depth refrigerators
  drawer dishwasher
  wi fi ready
  under counter dishwasher

Your alternative for built in is not listed? Suggest!
Speaking about built in, one probably shouldn't forget about doors.

Other search terms related to built in and their ratings are:
★★★★★ doors
★★★★ shelves
★★ web camera laptops
You have in mind a companion for built in and it is not yet here? Propose!



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built in
portable dishwasher
built under