it looks like the outside was more worn out and I got the allignment done and I think If I replace the front tires it should fix the problem,
Would It make a difference If I put different brand tires in front and keep the stock ones at the back, any suggestions

You can mix brands, but they will perform differently and may be slightly different sizes even though numerically they are the same (225/45R18). If the fronts and rears are the same size, I'd move the rears to the front and get new rear tires. I try not to mix brands.