This page explains how to get online via a wireless connection with your Nintendo Switch.
How to Connect a Nintendo Switch to your WiFi
Switch Won't Connect to WiFi? 11 Quick Fixes to Try
Nintendo Switch Lite Guide: How To Share Digital Games, 43% OFF
CableCreation USB 3.0 to Ethernet Adapter, USB to RJ45 Network Adapter Support 10/100/1000 Mbps Gigabit Compatible with Nintendo Switch, MacBook, Windows, macOS, Linux, Chrome OS, White : Electronics
Nintendo Support: How to Connect to the Internet Using a Wired Connection
Fast and stable wired internet connection Perfect for online multiplayer Plugs into Nintendo Switch Dock
Nintendo Switch Wired Internet LAN Adapter by HORI Officially Licensed by Nintendo, Case
Nintendo Support: How to Set Up a Router's Port Forwarding for a Nintendo Switch Console
How to connect a Nintendo Switch to your TV
Fast and stable wired internet connection Perfect for online multiplayer Plugs into Nintendo Switch Dock
Nintendo Switch Wired Internet LAN Adapter by HORI Officially Licensed by Nintendo, Case
Modem, Router, Switch, and Access Point: What's the Difference?
Internet connection (with a wired connection), Nintendo Switch Support
Nintendo Support: How to Connect to the Internet Using a Wireless Network