I just found this from asking on the Synology NAS forum how to connect to my NAS as their DSFile app is pretty poor. Then someone recommended the most awesome app ever.
Its basically the files app but it supports everything the way you actually want. Connect to everything everywhere and all with IOS11 drag and drop goodness. On the left you get a panel with
Your PC files
You Mac files
Google Drive
Dropbox
Local Files
SMB shares
AFP shares
WebDav
But they are all in the same browser, no annoying flicking between different browsers. You can every download a file on your iPad when you are out directly to your desktop at home.
https://www.stratospherix.com/products/filebrowser/
Its basically the files app but it supports everything the way you actually want. Connect to everything everywhere and all with IOS11 drag and drop goodness. On the left you get a panel with
Your PC files
You Mac files
Google Drive
Dropbox
Local Files
SMB shares
AFP shares
WebDav
But they are all in the same browser, no annoying flicking between different browsers. You can every download a file on your iPad when you are out directly to your desktop at home.
https://www.stratospherix.com/products/filebrowser/