This one is a bit different review - still it is ETSY product. Clip Art.
The link one should use is https://www.etsy.com/c/art-and-collectibles/clip-art.
The 'Art and Collectible' section of ETSY has thousands of clip art that we can use it in our blog posts. Nothing much impressive at the first look - but at the same time, the price from about a dollar onwards makes it lucrative.
Good collection of the clip art - and at the reasonable price.
So, go to ETSY for clip-art at https://www.etsy.com/c/art-and-collectibles/clip-art.