The best replacement for 85mm is 50mm.

The best alternatives to 85mm are rated as following:
★★★★★  50mm
★★★★  135mm
★★★  105mm
★★★  100mm
★★★  35mm
★★  100mm canon
★★  50mm lens
★★  70-200
★★  50mm canon
★★  100mm for portraits
★  135mm for portraits
★  70-200mm for portraits
★  70-200mm
★  105mm for portraits
★  50mm nikon
★  35mm canon
★  28 135mm
★  105mm nikon
  135mm canon
  100mm macro
  nikon 85mm
  70 200
  135mm portraits
  24 70
  18 200mm
  17 40mm
  24-70mm
  18 55mm
  122mm
  24-70
  24-105mm
  sigma 85mm
  50mm lens for portraits
  80-200
  ef 28 135mm
  50 mm
  18 135mm
  canon 85mm
  canon 50mm
  17 55mm
  24 105mm

Your alternative for 85mm is not listed? Suggest!
Speaking about 85mm, one probably shouldn't forget about teleconverter.

Other search terms related to 85mm and their ratings are:
★★★★★ teleconverter
★★★★★ d90
You have in mind a companion for 85mm and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of 85mm in all years. Click on graph for more.
85mm
50mm
135mm