These tools will select a random starting date and market to backtest.
If you want to select from several markets, upload a text file with all of the markets you want the tools to select from.
Random Date Generator
Random Market Selector
Forex Pairs List
Here's a list of the most commonly traded Forex pairs to get you started. Just copy and paste into the tool above.
Backtesting is the fastest way to figure out if a trading strategy has an edge or not. It's also the best way to optimize a trading strategy.
If you're new to backtesting, get started with the complete course here.