There is an obscure technology called HomePNA that can use telephone wires for Ethernet. Everything nowadays is pretty old and 10 megabit only. There's other stuff like VDSL2 for longer hauls.
Popular alternatives to
Cisco-Linksys USB200HA Home...
TP-Link USB WiFi Adapter for PC(TL-WN725N), N150 Wireless Network Adapter for Desktop - Nano Size WiFi Dongle for Windows 11/10/7/8/8.1/XP/ Mac OS 10.9-10.15 Linux Kernel 2.6.18-4.4.3, 2.4GHz Only
Edimax EW-7811Un 150Mbps 11n Wi-Fi USB Adapter, Nano Size Lets You Plug it and Forget it, Ideal for Raspberry Pi / Pi2, Supports Windows, Mac OS, Linux (Black/Gold)