Hi!!
Does anyone know where I can buy a replacement mounting bracket for the door cam/doorbell?
Try Amazon, they have a lot of Ring products and accessories.
Do you know if the ring setup on the bracket will match Wyze? That is my concern.
Sorry it’s been that kind of day. They have the Wyse mounts too.
Welcome to the Forum, @jeraphtig! 
Which model of doorbell do you have? Since last week’s announcement, Wyze now has four different models. Providing that information here might help others to point you in the right direction.
Having said that, I’m an advocate for 3D-printed solutions if you have access to that. I decided to learn about it last year through my local library specifically because I wanted an angled mount for my Video Doorbell v2. If you can’t do that yourself, then something like Etsy might be a good place to look, as well.