There’s no reason for a 15x8 on the front, you can’t run enough tire on a 15” rim to need an 8” wide rim in the front. And 4.25” backspace isn’t enough for a 15x8 with any reasonable tire up front. A 15x7” is the way to go, with 4” backspace for a SBP brake set up or a 4.25” backspace for a BBP brake set up. Less than that will limit your tire width.
You could run a 205/65/15 on a 15x7 with a 3.75” backspace, but probably not much wider than that on most cars even on a SBP brake set up.