Power A Enhanced Wireless for Nintendo Switch
If you're looking for a third-party wireless controller for your Nintendo Switch, then you may be interested in learning about PowerA's Enhanced Wireless Controllers.

These are apparently the first officially-licensed wireless Switch controllers released.

Pre-orders start at $49.99 (USD) and come in a variety of colors. They also feature a few additional buttons that you can map additional actions to, sort of like the Xbox One Elite controllers.
PowerA Enhanced Wireless Controllers for Switch provide gamers:Reliable wireless connectivityIntegrated motion controlsAdvanced gaming buttonsAdditional Features and Specifications

Apparently they also have some wired ($24.99) and wireless ($49.99) GameCube style controllers coming soon that can be used for the Switch. I'm assuming these will be popular among the Smash community.

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