Good polls to watch

Trafalgar group and Investors Business Daily were two of the polls that called it correctly in 2016. There are additional factors in this election including the unmeasurable Trump enthusiasm factor and the silent Trump voters that will not express their preference publicly, and especially to pollsters.

Traflagar Group polls state by state, helps when considering the electoral college.
https://www.thetrafalgargroup.org/

Investors Business Daily overall US numbershttps://www.investors.com/politics/biden-vs-trump-ibd-tipp-presidential-election-tracking-poll-2020/