5/6 drop!!! Wheels information OFFSET!!

2nd gen taco slamming it some time next week. But also trying to get some wheels just don't know what offset I should go with or what set up I should go with.
Front-18x8.5, or 18x9, 18x9.5
Rear-18x9.5, or 18x10

If anyone has any information into what offset I should be looking for with a 5/6 drop I would really appreciate it. The wheels that I'm looking at offer different offset. They are as follows
Front-18x8.5 +35 or +20, 18x9 +18

Rear-18x9.5 +15 or +40, 18x10 +25

Or I can do the same all around! Just need help with the offset! Tires would be the next step but I think I have more or less the idea for the tires.

Thanks in advance!

 

I'm on 19's right now and I just lowered the front another 1.5". So up front I'm at about 4.5" and still just 4" in the back since I haven't notched it yet. But my wheels are 19x9.5 with a 35mm offset I think. I can't remember for 100% but I'm pretty positive that's what it is. With no camber they are pretty flush all around.