No, you cannot charge a Tesla on both sides. All Tesla models currently on the market have a single charge port located on the left side of the car, behind the rear tail light assembly.
The only Tesla model that has a dual charge port is the Tesla Semi, which has a charge port on each side of the truck. However, the Semi is not yet available to the public.
There are some aftermarket kits that allow you to add a second charge port to your Tesla, but these kits are not officially supported by Tesla and may void your warranty.
If you are looking for a Tesla that can be charged on both sides, you will need to wait for the Tesla Semi to become available.