I need hair product help

Hey, everyone i’m trying to start the Abbey Yung method but i have straight frizzy hair/100% straight hair, it is also oily. I also have frizzy hair no matter if i cut it or put some of the products i have used recently. Idk what products to get or what porosity or hair type i have but i just want what’s best for my hair. if anyone knows what products i should get can u please let me know.