The best replacement for strategy pattern is factory pattern.

The best alternatives to strategy pattern are rated as following:
★★★★★  factory pattern
★★★★★  command pattern
★★★★  template pattern
★★★★  dependency injection
★★★★  state pattern
★★★★  visitor pattern
★★★  decorator pattern
★★★  bridge pattern
★★  abstract factory
★  inversion of control
  chain of responsibility

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Speaking about strategy pattern, one probably shouldn't forget about factory.

Other search terms related to strategy pattern and their ratings are:
★★★★★ factory
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