Xposed Module Recommendations for particular features I want?

I just rooted my new 6P and am looking to add features with a module. In particular, I want split screen and/or multi window, customizable navigation bar (with a notification drawer button), double tap to wake and sleep, and a one-handed mode where the screen shrinks down to a lower corner a la LG V10. Can anyone recommend a module or modules to flash that'd give me these features?

Anything that would help boost battery life would be welcome too.

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