Inquiry Hub Webinars
This group are leaders in developing NGSS curriculum. Highly recommend. https://www.colorado.edu/program/inquiryhub/professional-learning/inquiryhub-webinars-support-remote-teaching
Argument Driven Inquiry Webinars https://argumentdriveninquiry.com/webinars. (Check out the archives too)
NSTA (membership is now free)
Open source information text for science learning. Lots of supplemental resources too. Now is a good time to dive into their toolbox.
ScIC Virtual Unconference for Science Teachers #scicconf