The best replacement for hs80m is hs8.

The best alternatives to hs80m are rated as following:
★★★★★  hs8
★★★★  hs50m
★★★★  krk
★★★  ns10
★★★  msp7
★★  a7x
★★  rokit 8
★★  vxt8
★★  hs80
★★  krk rp8
★  hr824
★  adam a7x
★  mr8mk2
★  krk rokit 8
★  rokit 6
★  krk rp6
★  bx8 d2
★  mackie mr8
★  msp5
  hs50m with sub
  equator d5
  jbl lsr2328p
  genelec
  adam a7
  ns10m

Your alternative for hs80m is not listed? Suggest!
Speaking about hs80m, one probably shouldn't forget about hs10w.

Other search terms related to hs80m and their ratings are:
★★★★★ hs10w
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Google Trends

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hs80m
hs8
hs50m