The best replacement for chkdsk is scandisk.

The best alternatives to chkdsk are rated as following:
★★★★★  scandisk
★★★★★  sfc
★★★★  defrag
★★★★  chkntfs
★★★★  format
★★★  spinrite
★★★  seatools
★★★  error checking
★★★  fsck
★★  fdisk
★  hdd regenerator
★  scannow
★  defrag first
★  chkdsk f
★  full format
★  disk cleanup
★  testdisk
  sfc scannow
  sfc /scannow
  scan disk

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

Other search terms related to chkdsk and their ratings are:
★★★★★ repair
★★ restart
★★ windows cd
★★ fix
★ ubcd
floppy
You have in mind a companion for chkdsk and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of chkdsk in all years. Click on graph for more.
chkdsk
scandisk
sfc