Hello there,
I can create a subscribe button template for you. With this you can add the template in all of your video. If you want some specific design to be created just let me show the design you want to be create for you.
I can ensure you the best work from my side. Because I've managed several youtube channel and I'm professional at Adobe premiere pro.
Just knock me if you're interested to know further about the work.
Thanks,
Ashraful Kabir