This is a common question asked on this site. Try searching for past conversations.
Speaking as a white guy who had one scene in AV here, the chances of finding work
as an AV actor are close to zero unless you have connections. There is almost no
demand for foreign males unless you are black with a big dick. Only then do
your chances rise from 0.01% to 0.05%.
If you were a hot white girl with a decent body, you could find work easy
depending on how low pay you were willing to go.
Below are the options I would recommend you follow in order of highest
probability of finding work:
1. Try asking any AV connections you might have. I got into one scene because
a girl I know is a star in bondage AV and she wanted me to be her partner in
a "couples" sex video. If no connections, your chances go drastically down.
You could also try to forcible make a connection by hiring or seeing known
prostitutes who used to be or are still in AV. (Not just prostitutes, but also
hostesses, etc. They might be willing to make a few calls for you.
2. Constantly access AV studio sites and search for casting calls. Average men
have gotten in as soupmen, so if you are lucky to find a casting call, send them
your resume and hope for a call back.
3. If you can't find any casting calls, go to the AV studio or talent agencies directly
and give them your resume. They will most likely turn you away once you tell them
your purpose for being there, but it's not a complete waste of time.
4. Get into porn overseas and send studios/agencies your past work. It might get you noticed.
Good luck.