I've long been skeptical about how effective the US could be in raising human rights with China, but @SophieHRW makes a pretty strong case against the "human rights as part of engagement" approach of the pre-Trump years. https://www.foreignaffairs.com/articles/china/2020-11-27/biden-must-stand-china-human-rights?utm_medium=social
She advocates for Biden keeping the Trump admin's tough rhetoric on China's human rights, but making that rhetoric more credible by cleaning up the US human rights problems at home. This seem eminently doable for the Biden Admin.
The real danger, as she sees it, is that the Biden admin will be tempted to re-open the endless "human rights dialogues" with China while making deals on other issues.
One danger (IMO) is over-reliance on intl human rights institutions to push back against China. The one-nation, one-vote structure of those institutions makes them unwieldy and often ineffective.