I think there are organizations that themselves would be more likely to be robustly trustworthy and would be more fine to link to
I would be curious for your thoughts on which organizations you feel are robustly trustworthy.
Bonus points for a list that is kind of a weighted sum of “robustly trustworthy” and “having a meaningful impact RE improving public/policymaker understanding”. (Adding this in because I suspect that it’s easier to maintain “robustly trustworthy” status if one simply chooses not to do a lot of externally-focused comms, so it’s particularly impressive to have the combination of “doing lots of useful comms/policy work” and “managing to stay precise/accurate/trustworthy”).
Note that IFP (a DC-based think tank) recently had someone deliver 535 copies of their new book to every US Congressional office.
Note also that my impression is that DC people (even staffers) are much less “online” than tech audiences. Whether or not you copy IFP, I would suggest thinking about in-person distribution opportunities for DC.