You can upload images on this website and it'll index actual similar images based on it. And it also allows NSFW stuff.
I could use Pinterest, Cosmos.so or Google but it's full of AI shitz while this one bans it.. Also for whatever reason i usually get more high quality images here compared to other sites. Idk, might be just placebo.

Plus, you get separate recommendations of images based on the stuff in your collections, so you can have specific stuff for fashion, figure photography, etc, based on the content in your collection. I pretty much ditched all other sites and use this exclusively, never been so happy.