How to make a separated server for clients to upload files/images only

Hello, How are you guys, I hope all of you are ok and safe from COVID-19 I want to build another server with fast SSD to make it a CDN server, So all client's can upload their files to the 2nd server and images, so we can make both servers more faster than before for client's Do you have any idea guys or any similar ideas? Anything will be appreciated.