Key Overlays/Technical Indicators for Stock Trading

[blueroadster]

I've seen SMA, EMA, and Bollinger Bands commonly used to track fund/stock action as an overlay. Ichimoku Clouds also seem like an interesting overlay. Are there any other overlays that one should consider for reference or would be recommended?

For technical indicators, RSI, MACD or PPO (PPO appears to be more widely used), and STO (Full appears to be more commonly used). What other technical indicators should one consider for reference or would be recommended? ADL or CMF (CMF appears to be more all encompassing)), CCI, TSI, MFI are ones that that appear worth referencing.

Any recommendations on leading indicators worth referencing or tracking (e.g., transports, copper, etc.)?

Thanks!