The best replacement for orangutan is gorilla.

The best alternatives to orangutan are rated as following:
★★★★★  gorilla
★★★★★  chimp
★★★★  sumo
★★★  monkey
★★  chimpanzee
★★  orangutang
★  orangutan
★  chimpanzee smarter
★  gibbon
★  gorilla stronger
★  sumo wrestler
★  gorilla who is stronger
  orang-utan
  baboon
  orangatang
  two orangutan

Your alternative for orangutan is not listed? Suggest!
Speaking about orangutan, one probably shouldn't forget about dog friend.

Other search terms related to orangutan and their ratings are:
★★★★★ dog friend
★★★★ clint eastwood
You have in mind a companion for orangutan and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of orangutan in all years. Click on graph for more.
orangutan
gorilla
chimp