The best replacement for rotary hammer is hammer drill.

The best alternatives to rotary hammer are rated as following:
★★★★★  hammer drill
★★  demolition hammer
★★  impact drill
★  jack hammer
  combi hammer
  drill

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Speaking about rotary hammer, one probably shouldn't forget about chisel.

Other search terms related to rotary hammer and their ratings are:
★★★★★ chisel
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rotary hammer
hammer drill
demolition hammer