https://placeit.net/youtube/ - has affiliate prog
https://filmora.wondershare.net/filmora-video-editor.html
https://www.canva.com/create/youtube-thumbnails/
https://www.picmaker.com/youtube-thumbnail-maker
https://www.visme.co/thumbnail-maker/
https://www.fotor.com/design/youtube-thumbnail.html
https://create.vista.com/create/youtube-thumbnail/
https://snappa.com/create/youtube-thumbnails
https://pixelied.com/create/youtube-thumbnails