Many online-platforms for B-Roll popped up in the last years. Also many well known stock photo platforms started to offer video clips.
Some of these platforms even have a selection of free clips, others offer a flatrate subscription.
these platform have a small selection of free clips and beyond that are listing clips for purchase.
Envato Elements and Motionarray are the best bargains right now, offering also sound, music and more. Artgrid.io has high quality clips. Soundstripe started a flatrate stock video archive in 2020, but the selection still is limited. What is your recommendation? Write to contact (at) joopeter.de
http://artgrid.io (High quality)
More Information on the following sites:
Apps for education (german website)