Wazi Clips 

Hello welcome to the wazi clips ,
all creators’ rights and give full credit to original owners where applicable.”

Short version:

“This video is a collaboration with Credits to all respective creators.”

Reaction Video Disclaimer (Copyright Safe Style )
“This video contains reactions and commentary on content originally created by other creators. The original video belongs to its rightful owner. This reaction is made under Fair Use for commentary, criticism, and entertainment purposes. No copyright infringement intended.”
Short version:

“Copyright Disclaimer: This video is for commentary and reaction under Fair Use. All rights belong to the original creators.”

Use short clips, not full contents 
Transform the content (reaction, review, analysis)