PimEyes, Google Lens, TinEye, Yandex.Images, Google Images, RevIMG, SauceNAO, Search by Image, trace.moe, Reverse Image Search, Bing Images, DriverLayer Image Search Engine, IQDB, Qwant Images, Reversee, Byo Image Search lab, THINK FR33 Reverse Image Search, ImageFinder for Safari, PicsLikeThat, Image Search Options, Google Goggles, CamFind, Image Analysis Toolset, Reverse.photos, Search by Image (by Google), Picitup, Safe Design, isk-daemon, Plaghunter are some alternatives to NooBox.