I've used the mothers clay bar kit and its awesome. Definitely recommended. Get plenty of detail spray.
Definitely wax after claying.
Brand wise, I prefer Adams Polishes and Griot's.
http://www.griotsgarage.com/category/car+care.do
Best tip I can give is to get good microfiber towels. The blue Griots towels are amazing. Only wash the towels with other microfiber.
Adams polishes has very good instructional videos. They are good quality aren't too long.
https://adamspolishes.com/video
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