[1] - TinEye Reverse Image Search Engine

https://tineye.com/

TinEye Chrome extension

[2] - Google Images

https://images.google.com/

[3] - Yahoo Image Search

https://images.search.yahoo.com/

[4] - Bing Image Search

https://www.bing.com/images/discover

[5] - Pinterest Visual Search Tool

https://www.pinterest.com/

[6] - Picsearch

https://www.picsearch.com/

[7] - Flickr

https://www.flickr.com/

[8] - Getty Images

https://www.gettyimages.com/

[9] - Shutterstock

https://shutterstock.com/

[10] - Yandex Image Search & Similar Images

https://yandex.com/images/

[11] - The New York Public Library Digital Collections

https://digitalcollections.nypl.org/