Installing a Lutron dimmer with 3 light switches (5 wires) - Home Improvement Stack Exchange
Lutron Lumea Single-pole/3-way LED Slide Light Dimmer Switch, Ivory in the Light Dimmers department at Lowes.com
How to Install a Dimmer Switch - Single Pole or 3 Way - YouTube
Lutron Maestro LED+ Dimmer Switch Kit with Companion Switch, 150W LED/3-Way or Multi-Location, White (MACL-153M-RHW-WH) MACL-153M-RHW-WH - The Home Depot
Lutron Skylark Single-Pole/3-Way LED Slide Light Dimmer Switch, White in the Light Dimmers department at Lowes.com
Wiring a 3 Way Dimmer in a Single Pole Application (with Wire Leads) - YouTube