What I use is VK (Vkontakte). A social network just like facebook, but russian. It allows you to watch and upload porn. Only issue, "copyright". But they just block you from uploading more videos for a period of time (1 month). I´ve uploaded 2,160 videos until know to release my hardrive, and there is a 5 GB limit on videos. Thatfor me is pretty big.
You can organized it by playlist, in my case by models.
And at the moment of uploading the video there is an option of "Only me", on who can see the video. So you can see that my playlist and videos have a "lock" on the left corner.
For example, on these videos from the Kaylen Ward playlist they all have 1 view (mine).
The only prblem is copyright. I don´t undersatnd it well so I think it´s some encryption on some videos with DMCA, that at the moment you upload the videos it is taken down, for "copyright". The good part is that they don´t delete your profile nor your videos, just the one with the claim. You got like strikes (I don´t know how many strikes), that when you complete them, they don´t let you to upload more videos for 1 month. After that, you can continue uploading until your next "copyright".
For example, I got a "copyright claim" on may 22 until june 23, that appears everytime I want to uplaod a video.
Thats why I´m watching this thread, for other options to store the content hahaha.
Sorry if my english is too bad.