The best replacement for permanganate is oxalate.

The best alternatives to permanganate are rated as following:
★★★★★  oxalate
★★★★  potassium permanganate
★  manganate
★  dichromate
★  sodium permanganate
★  methylene blue
★  potassium dichromate

Your alternative for permanganate is not listed? Suggest!
Speaking about permanganate, one probably shouldn't forget about oxalic acid.

Other search terms related to permanganate and their ratings are:
★★★★★ oxalic acid
★★★★ hydrogen peroxide
★★★★ alkenes
★★★ ethanol
★★★ oxalate
★★★ cyclohexene
★★★ peroxide
★★ sodium oxalate
★★ benzene
★★ carboxylic acid
★ glycerol
★ formaldehyde
★ aldehyde
alkene
acetylene
methanol
You have in mind a companion for permanganate and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of permanganate in all years. Click on graph for more.
permanganate
oxalate
potassium permanganate