What are some good hair products for beachy waves?

I hate naturally straight hair so its pretty hair to get beach waves. I don't want to use any heat against my hair especially curling irons. I want to know about some sprays that would work great for straight hair. If there are any beachy wave sprayers e.t.c these are the brands i mostly like : Tresemme, garnier frutice, If there is any other brands ...i would love to hear about them ! :)