Check out iconik.io - plans start at about 100,- USD / month. (Other MAM /DAM Solution are quite more expensive) I think it offers all the things you need.
Thank you! That is amazing!!!
I discovered Google Drive Desktop recently. It has a stream version. You can put you High Res files on Google Drive (Using the new desktop version), and your high res files will play smoothly. If you want, you can also setup your Adobe Premiere to make proxies while importing automatically on your local drive. So you can edit in proxies, and conform with High res when you are done. It works perfectly and smoothly.