The best replacement for gallen is purcell.

The best alternatives to gallen are rated as following:
★★★★★  purcell
★★★★★  myles
★★★★  herman
★★★  herman ene-purcell
★★★  messam
★★★  elliot
★★  papalii
★★  gordie
★  hika
★  thun
  hika elliot

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Speaking about gallen, one probably shouldn't forget about verne troyer.

Other search terms related to gallen and their ratings are:
★★★★★ verne troyer
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