What monitor size and resolution you play?
I´ve been a gamer for quite sometime and i can assure you Nvidia is much better and easier to handle than the Radeons. Specially with the DLSS support coming in the SU10. Nvidia Exclusive.
I can point you in the direction of a good Nvidia RTX card, small, good cooling.
Never go for gigabyte. Asus and EVGA are the best.
this is a great one. great construction, backplate, very good cooling and very small.
Also 12gb of memory on the 3060 would be a better deal than the 3060Ti with only 8gb.
Always good to have some extra memory, specially for a sim.
Anything less than 30fps for a sim like this and specially you that as i can see plays a lot is a torture!