US Male Audience

How do I reach US male audience? I don't understand how the algorithm works. If I post the same type of reel over 3 accounts for example, one reel reach US female audience, one reel reach India and the other half Indian male, half US male. I put english captions, I don't post explicit content, pretty good hooks. It's totally random for me where do my reels reach. Does the warm-up of the account matters? What should I do?

-Proxies doesn't work, I reached more US audience without using the proxy
-I post on phones, so no anti-detect browsers or things like this
-This is for OF promotion

Even if you are not in my niche, any advice is good.

For that, post videos that use hashtags that are often used by the US. This will help reach users from the explore page that are in that specific area. However, it is vital that the content matches the hashtag. Keep that in mind.