Figure drawing is a fun and good way to get better at drawing humans.

Some free resources:

https://quickposes.com/en/gestures/timed
https://www.quickposes.com/en
http://reference.sketchdaily.net/en
https://quickposes.com/en/gestures/random
https://www.characterdesigns.com/non-nude-photo-index
https://www.lovelifedrawing.com/tutorials/
https://app.posemy.art/
https://line-of-action.com/practice-tools/hands-feet-practice
https://www.rkgk.org/

Might as well check the archives and active /ic/ threads for references:

https://warosu.org/ic/thread/7019067#p7019080
https://warosu.org/ic/thread/2015637
https://warosu.org/ic/thread/6864584
https://warosu.org/ic/thread/2023233
https://4chanarchives.com/board/ic/thread/2015637

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