Some online resources for listening to & watching flamenco music:
You’ll find lots of videos here on this site.
(If you are looking for a video example of something specific you can do a search by typing “video + …” in the search bar on this site. For example if you are looking for examples of alegrías type “video + alegrías” into the search bar, or if you are looking for examples of Manuel Liñan type “video + Manuel Liñan” etc.)
If you are looking for an audio or video of a certain style, check here.
And, of course, you can find tons of flamenco videos on YouTube, Facebook, Vimeo, etc.