Best Gaming PC Build for $1,250–$1,350 Using New Parts?

I'm planning my first gaming PC and would appreciate build recommendations. I'm in the United States, not near a Micro Center, and want to use only new parts. An all-white aesthetic would be nice, but performance matters more, so I'm fine with a different color if white components cost significantly more. I don't have any specific games in mind—I'm mainly looking for the strongest overall gaming performance possible within a $1,250–$1,350 budget.