The best replacement for lumion is vray.

The best alternatives to lumion are rated as following:
★★★★★  vray
★★★★  lumenrt
★★★★  artlantis
★★★★  autodesk showcase
★★★  cryengine
★★★  twinmotion
★★★  lumion pro
★★★  revizto
★★  vue
★  quest3d
  iclone

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

Other search terms related to lumion and their ratings are:
★★★★★ revit
★★★ sketchup
You have in mind a companion for lumion and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of lumion in all years. Click on graph for more.
lumion
vray
lumenrt