I use turtle wax wash and wax: Turtle Wax T-472R ICE Car Wash - 48 oz. https://www.amazon.com/dp/B007KTINZ8/ref=cm_sw_r_cp_api_i_EUOeDbJM1FW86

For interior I usually just use a diluted APC, or turtle wax interior cleaner, I’m sure there’s better out there but it works for me: Turtle Wax T484R ICE Premium... https://www.amazon.com/dp/B071JDM1H8?ref=ppx_pop_mob_ap_share

And yeah, 2 bucket method. People recommend grit guards for your buckets too but my car doesn’t usually get dirty enough for me to warrant it.

I recommend a wash mitt, a bunch of microfiber towels, and a vacuum for the interior.

Also look into a leather cleaner and a leather protectant.