The best replacement for rhodium is sterling silver.

The best alternatives to rhodium are rated as following:
★★★★★  sterling silver
★★★  white gold
★★★  platinum plating
★★  palladium
★★  palladium plating
★  gold plated
★  gold plating
  ruthenium
  platinum more expensive

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

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



Google Trends

Scale is based on the average worldwide traffic of rhodium in all years. Click on graph for more.
rhodium
sterling silver
white gold