If you are looking to add some of the generic images of isometric art. I am sure there are plenty of sites out there. However a lot of those sites have the paid art for the isometric content. Undraw however is a bit different. It allows you to use their content for free and you don't even have to make use of the credit link either. It's a free to use content and can be used in many web designs.
Have you tried out undraw?
Have you tried out undraw?