I found TNT Global Capital (tntglobalcapital.com) from a blog post comparing services and the initial impression was positive. But since I retired last year later, I have encountered so many issues that I cannot recommend them. Trades failing, charts not loading, and support tickets going unanswered for days at a time.
Pros: Regular platform improvements|Demo account available
Cons: No fractional shares|Charting tools need more indicators