I’d recommend you use personal edpecience and experiment and try to test a few things out yourself to see what’s good to use.

I think the RSI is good for working out the sentiment of the market in some ways but it’s good to cross reference it with something else as it won’t work on its own – I use it in conjunction with a specific strategy for example.

I think there are indicators for volatility that might be usable but I can’t remember what they’re called.