I’m not the best person to give that specific advise as I have a 2020 on order and haven’t used the specific parts you’re asking about. I’ve been reading lots of threads and my internet opinion from what I’ve seen other post is the eibachs should come close to level. New springs usually sit tall and then settle some. From what I’ve read here and seen on YouTube I think the progressive Geiser coils are better than the eibachs for the way these trucks perform, but they reportedly give more height which doesn’t help you. I do think that any springs are the better solution compared to a spacer or collars for achieving front height.
Personally I plan on buying the Deavers at some point, my choice would be the +3 with a 1” lowering shackle. That combination gives you the option for 1” of lift in the rear if you need it vs the standard +2 setup. I don’t want to lift my truck at all, or really do any mods that will negatively effect fuel economy. I know I shouldn’t care about such nonsense, but I will be driving my Raptor about 20K miles per year for work.
I've put 22k on my '19 in the last 11 months. I've had eibachs up front since September and recently added Deaver +3 HD's. if there's a fuel mileage difference with this tiny lift, I haven't noticed it. that's just me tho, others may have different results.
with this setup fully broken in, my truck is as level as it gets. it's maybe a 1/2" higher in the rear.