If your looking for great products without spending a lot of money try Chemical Guys. They have a XXX hardcore wax. I think it's $18 for a jar. Awesome wax for the money. Their waxes and sealants are insanely durable. I detail for a living and to be honest bang for buck they are the best. I have never used a product they have made that did not live up to what they said it did.
Meguairs NXT is good in paste form. The liquid is terrible pain to get off.