can somebody assist we with Apex wheel fitment?

Trying to get the Apex Arc8 18” however there are such a lot of offset choices.

I drive a 2017 M240 x drive My tires are continental Xtreme contact 245/35 18I have dinan reducing springsLooking for a sq. arrange

what could be the best offset to order for the arc 8s direct match. There are plenty of choices. would I want spacers for something?I don’t monitor this automobile simply aggressive avenue driving.

Thanks!