>>>Dropbox: from their website...
>>>
>>>Beginning March 15, 2017, the Public folder will be converted into a standard Dropbox folder that’s private to your account. This transition will occur automatically. After the transition, when someone visits an existing Public folder link, they’ll see an error page.
>>>
>>>Does anyone have any recommendations on what to use to share files when Dropbox stops this capability?
>>
>>You can Google [dropbox public folder alternative]
>
>I have done that :)
>I was looking to see what others here are using.
>
>This looks interesting!
>https://www.openhardwareshop.eu/en/networking/21-nextcloud-box-complete-package

Well, when you don't tell us what you've already looked at, and how you want to use it, we don't have a lot to go on :-/

If you want an LAN shared folder/device, some home routers have USB ports into which you can plug flash drives, and then you can configure the router to make that drive shared on the network.