I'm looking for advice on a new shampoo...?

Typically, when left unattended, I have straight hair. As in straight out in every direction. I've been using Herbal Essences frizz control shampoo and a Garnier anti-frizz serum, and typically straightening it nicely. This has been working okay except for two problems. 1) My hair is also color treated, so I feel like I'm damaging my color in my attempt to control the frizz. I constantly have to re-dye. 2) The serum is kind of oily, and makes my hair feel dirty by the end of the day. I want to change my hair regimen without sacrificing my style. I am open to any and all suggestions for different products to use. Help please!?