Hello,
Your request caught my attention. I currently work on another freelance platform where I had 3000+ clients on the logo intro/outro niche (do drop me a message for more details as I am not allowed to link that) and do check out my profile portfolio to get a better idea of the style I work with and if you are interested, do not hesitate to drop me a message so that we can further discuss the details of the project.
Also, as mentioned by you above, we know how important copyright is on Youtube nowadays and can guarantee that you will own 100% of the copyright on the videos, banner and logo upon confirmation.
No templates or other hidden catches. You get what you pay for.
Kind Regards,
Alex.