What is the best two-vehicle home charging solution for a Rivian and a Tesla?

My wife drives a 2021 Tesla Model 3 and I have a Rivian R1T on order. We're moving into a new home in a couple of months, and I want to set the garage up for effective level 2 charging on 60 amp circuits. As I understand it, my options are:

• Install a third-party two-cable charger, with a Tesla adapter on the appropriate cable for the Model 3, that will share the electric load between the two vehicles.
• Install two Tesla chargers, connected through WiFi for load sharing, with a J1772 adapter on the appropriate cable for the R1T.
• Install our single Tesla charger and manually switch the cable between the vehicles as needed, with a J1772 adapter when charging the R1T.

Am I missing any other options? Who is using one of these methods? Pros and Cons? Any insight is appreciated.