Thanks for your comments. Your suggestions are good
I registered two domain, I registered two:doggyporn.net and doggystyleporn.info I chose a shorter name. Probably the doggystyleporn.info domain would be easier for me, but I can make 301 for longer domain.
I used the statistics from the KWFinder tool:
doggy porn - 227 000 searches in US by month (difficulty 21/100)
doggy style porn - 62 000 searches in US by month (difficulty 26/100)
doggy xxx - 33 000 searches in US by month (difficulty 20/100)
best doggystyle - 17 000 searches in US by month (difficulty 23/100)
Based on these statistics, a lot of people use the phrase "doggy porn" and other.
I used WordPress for a project to get first step one in minutes. I allow myself to make mistakes to quickly learn from them. When I know exactly what I want in my project, then I will have the green light to create it without buying ready-made items that may limit me.
OpenAI GPT-3 - thanks for idea - it is an interesting topic.
Linking for SEO purposes is my weakest skill. In other industries, it takes a lot of effort to get links. In the adult industry, you can choose on GFY of ropes. For this reason, this industry interests me because it is easier to get buy thematic links and easier to learn.