Tradestation CS was never good, fell off a cliff in Covid and never recovered.
The beauty of Tradestation is the software itself. If you don't need/want their software there are probably much better options.
Any futures broker will allow you to trade Palladium, that's not a Tradestation thing.
Two popular Brokers that have free front ends are Interactive Brokers (trade everything in on account, but very aggressive liquidation rules and terrible CS as well) and Tasty Trade (No experience).