Need help [ adult niche]

Hi , I want to run my adult website but don't know anything about choosing category or script for that . so i have some questions :

1. Which category is better and easy to rank?
2. Script ( theme )
3. Where should i upload vids? netu.tv or verystream?
4. how to get traffic from social media?

thank you guys

@JohnSKnndy I advise you to use wordpress with feed extraction plugins to retrieve the videos, for the theme any one can do the job

I m interested