The best replacement for 2 way switch is 3 way switch.

The best alternatives to 2 way switch are rated as following:
★★★★★  3 way switch
★★  3 way
★  1 way

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Speaking about 2 way switch, one probably shouldn't forget about 2 lights.

Other search terms related to 2 way switch and their ratings are:
★★★★★ 2 lights
★ 3 way switch
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2 way switch
3 way switch
3 way