[2-in-1]WEme USB 3.0 Type A and C to RJ45 Gigabit Ethernet Adapter with 10/100/1000 Mbps, LAN Wired Network USB-C Convertor (Unibody Aluminum) is only $5.88 right now on Amazon.
Click "Buy 1, get 58% off 1 Applicable Promotion(s)" right under the price in the center of the page then click on redeem and 58% will be taken off at checkout.
Connection is USB type A, but it also comes with an A to C adapter.
https://smile.amazon.co