The best replacement for gleason is clements.

The best alternatives to gleason are rated as following:
★★★★★  clements
★★★  lucic
★★  kulemin
★★  boulton
★★  maroon
★★  klingenberg
★★  ott
★  rosehill
★  tinordi
★  oerlikon
★  neil
★  clement
★  klingelnberg
  steve ott
  koenig
  milan lucic
  gerald gleason
  bendix
  art carney

Your alternative for gleason is not listed? Suggest!
Speaking about gleason, one probably shouldn't forget about pearl jam.

Other search terms related to gleason and their ratings are:
★★★★★ pearl jam
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gleason
clements
lucic