Lots of codes

Yup, those are iridium plugs, and the tips look legit, no bullshit fakes like scAmazon is known to sell.

They've definitely been changed at some point (OEM is NGK) but look like they got a good 80k miles or more on them. I don't see anything that'd make me think there's an issue, but the darker one is probably on a cylinder that's misfiring more. Couldn't hurt to swap them out, it's probably about that time, only takes 15-20 mins, passenger side is easier.

Here's what my '06 factory NGKs looked like when I pulled at 73k miles:

 

Part of your issue could be the autolites. They probably have a different internal resistance and could be causing the misfires.

I've seen brand new autolites put into hondas instantly fry the ignition coil.


Get some ngk or denso plugs from a parts store or rockauto.

 

Loosely fits the symptoms too - given the age on the plugs based on appearance, and misfires appearing on two different cylinders (2, 8), it's possible the old plugs are wearing out one by one. Given they appear to need replacement anyway... may as well knock out this routine maintenance.

I managed to get a pretty solid deal, around $7/ea for my Toyota-recommended NGKs. @OP, the OEM suggested NGK plugs are these.

$11/ea isn't exactly cheap, but I walked out the door ordering online from Advance Auto Parts for free store pickup, and got them down to $7/ea using a coupon. Advance always has 10-25% off coupons floating around - you can get 15% off today using coupon RMN15AAP and it appears the CHRISFIX25 coupon still works but only gives 15%, not 25%.

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Sound like a good price, checked with AA 15 per cent off internet order free shipping, that would help, we have a AutoZone and O'Rielly fairly close we'll check the prices