Send file to Client / Resources folder ?

Hi guys,
I was wondering if there is a method to "upload" or "send" a sprite (or ultimately a scriptable object) to clients ?

I'm asking because I was thinking about adding et removing runtime skins in resources folder of my clients.
(if a player possesses a skin that other doesn't have, I could load them to the other player so they can see it in their game instances)

Thank you all for your inputs

 

Google firebase has an image storage feature, and you can host images there, and download them to clients. It is pretty easy to work with, I've used the storage and database. You would just need to send the "skins" to other players by having them check the database to see who uploaded skins and then download those from the storage.