I typically have the most time in the evenings for intraday trading. One futures contract I found suitable for that is the CL (Crude Light) NYMEX contract that gets reasonable volume in our evening window. I've had a bit of a look around, but couldn't see many other contracts with sufficient liquidity in that timeframe. Any suggestions for other futures contracts with good liquidity that I may try (maybe some of the European markets?). I haven't subscribed to data for European markets through IB yet, but may give it a go if there are some promising candidates.