Lupton, D. (editor) (2020) Doing fieldwork in a pandemic (crowd-sourced document). Available at: https://docs.google.com/document/d/1clGjGABB2h2qbduTgfqribHmog9B6P0NvMgVuiHZCl8/edit?ts=5e88ae0a#
Sevelius, J. M., Gutierrez-Mock, L., Zamudio-Haas, S., McCree, B., Ngo, A., Jackson, A., ... & Stein, E. (2020). Research with Marginalized Communities: Challenges to Continuity During the COVID-19 Pandemic. AIDS and Behavior, 1. https://doi.org/10.1007/s10461-020-02920-3
Block, E. S., & Erskine, L. (2012). Interviewing by telephone: Specific considerations, opportunities, and challenges. International journal of qualitative methods, 11(4), 428-445. https://journals.sagepub.com/doi/pdf/10.1177/160940691201100409
Marhefka, S., Lockhart, E. & Turner, D. (2020). Achieve Research Continuity During Social Distancing by Rapidly Implementing Individual and Group Videoconferencing with Participants: Key Considerations, Best Practices, and Protocols. AIDS and Behavior. https://doi.org/10.1007/s10461-020-02837-x
The NIH Office of Behavioral and Social Sciences Research compiled a list of data collection instruments for COVID-19-related social science domains: https://www.nlm.nih.gov/dr2/COVID-19_BSSR_Research_Tools.pdf
The grey lit database Disaster Lit includes research tools; you can search for COVID-19 and limit your results to research tools here.
The PhenX Toolkit includes consensus measures for phenotypes and exposures. Normally there is a robust process for selecting measures for inclusion; their COVID-19 protocols page includes protocols that are in use (not just protocols that are validated): https://www.phenxtoolkit.org/covid19
Societal Experts Action Network COVID-19 Survey Archive: https://covid-19.parc.us.com/client/index.html#/