@JustaMom5465 That was my initial problem; I didn’t have the option on my Kindle or Amazon to just remove from the Kindle. The only option was to permanently delete from Amazon, meaning if I decided to read any of these books, I would have to repurchase them.
I just permanently the ones I knew I had no interest in, and used the filter to show only downloaded books like @my3girls suggested. While everything that came up when I googled, as well as on Amazon, stated that I should be able to just select the Remove from Device option, none of the books had that option on either my Kindle or on Amazon under Manage Your Content and Device. I am good with my work around.