The best replacement for sm57 is sm58.

The best alternatives to sm57 are rated as following:
★★★★★  sm58
★★★★  beta 57
★★★  e609
★★★  audix i5
★★  e906
★★  i5
★  sm7b
★  at2020
★  sm57 lc
★  58
★  pg57
★  sm57lc
★  sm7
  md421
  sennheiser e609
  sm57-lc
  sm57 beta
  e604
  e835
  beta 57a
  es57
  421

Your alternative for sm57 is not listed? Suggest!
Speaking about sm57, one probably shouldn't forget about phantom power.

Other search terms related to sm57 and their ratings are:
★★★★★ phantom power
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sm57
sm58
beta 57