OX Securities accepts US clients. They are offshore, I have used them for years and have substantial amounts in sevral accounts with them. Their "mother" company is from Australia and they do not want any bad publicity.

Any good brokers for US clients?

You’re running into a margin limitation, not a risk-management issue. With 20:1 leverage, opening 0.2 lots (needed for $2 per pip and $20 risk) requires $1,000 in margin—the entire account—so your broker blocks it. The maximum you can open is 0.05 ...

How many pips is reasonable per day for a day trader