PimEyes, Google Lens, TinEye, Yandex.Images, Google Images, RevIMG, SauceNAO, Search by Image, Picsearch, Reverse Image Search, DriverLayer Image Search Engine, IQDB, Qwant Images, Reversee, THINK FR33 Reverse Image Search, ImageFinder for Safari, Flow Powered by Amazon, PicsLikeThat, Image Search Options, COPYTRACK, CamFind, Image Analysis Toolset, NooBox, Reverse.photos, Search by Image (by Google), Picitup, Safe Design, isk-daemon, Plaghunter, Unravl are some alternatives to Search by Image.