Best hosting service?

Hi ! I’m new to strapi and I have some questions.

I’m looking to switch my stack to strapi for my clients. In the future all the client’s website i’m gonna make will be based on Strapi. There is any hosting services for this kind of purpose ? (Multiple environnement but all in one ?) And do you recommand me to use an external cdn like Cloudinary ?

I’m kind of lost in this new tech and I don’t know where to look at…

Thank you very much,