Kasa KS230 & HS210 3Way 

Installing Kasa's 3way dimmer and 3way smart switches
I am not an electrician and only posted the video to be helpful. Note I sometimes say "transfer wires" when referring to "traveler wires" when talking about the 3-way wiring.
Here is a list of devices and tools I used:
Kasa HS210 - a.co/d/8FYVIm8
Kasa KS230 - a.co/d/8WShvJK
Wago lever nuts - a.co/d/2sy1bLa
Volt Claw - a.co/d/d0L3jUF
Klein insulated screw driver - a.co/d/cYPCtyM