I really like the factory TRD skid plate for the 5th gen 4Runner. Here's an install and video review. Super easy to install.
*This skid plate will not work with the 4Runner's equipped with KDSS.

If you're interested in this skid plate, check out my Amazon Affiliate link. There's no additional cost to you and I make some on qualifying purchases.
https://www.amazon.com/shop/lx_plore

Thanks again for watching
John
LXPlore