Hey! For real-time demo data and free trials in the futures market, you can check out platforms like NinjaTrader, which offers a free data feed for demo trading, or TradingView, which provides volume profile tools with real-time data (depending on the plan). Bookmap and Sierra Chart also specialize in order flow and volume profile, though they tend to be paid services after a trial.
For order flow indicators, MarketDelta and Footprint Charts are popular tools for visualizing order flow. These tools show bid/ask volumes at different price levels, which can give insights into market sentiment. For forex specifically, platforms like MetaTrader 4/5 with custom plugins or NinjaTrader are great choices. Look for indicators like Delta Volume, Cumulative Delta, and Footprint Charts to analyze order flow effectively.
Good luck with your learning!