Countable is helpful because it presents distilled information simply and also encourages taking action. It’s quick.
5 Calls is meant for taking action and contacting your member of Congress (MOC). It doesn’t list specific bills, but it’s very simple and does show the most notable/important national issues political activists are focusing on at the moment.
For informational research, these 3 resources are great for tracking/searching legislative details and newly introduced bills:
GovTrack focuses on federal bills only. They have a weekly list of upcoming bills, “hot” bills of interest, MOC voting records, and bills/meetings by Congressional Committee. There are other interesting features like “prognosis” (indicates the likelihood of a bill being enacted), the ability to compare text of different versions of a bill, and highlights notable votes (like if it’s unusual for a MOC to vote a certain way based on their history, stance, and political party).
LegiScan has a database on federal and state bills. They have a trending top 50 list nationally and for each state.
Bill Track 50 has a database on federal and state-level legislation too with a “currently trending” section.
Note: LegiScan and BillTrack50 may require free registration to use. Searching and reading full text is free, but be aware saved searches, tracking alerts, etc. require a paid subscription, which I can’t vouch for. I only use these sites on rare occasion to glance at trending state stuff.
For looking up info after a bill has been voted on (i.e., not trending or upcoming bills), aside from GovTrack, sometimes I use these 2 sites for learning more:
Ballotpedia is a wiki-style encyclopedia with info on election news, analyses, polls, history, policies, state laws, candidates, influencers/activists/lobbyists, fact-checking, etc… basically anything across the federal, state, and local levels.
ProPublica has MOC voting record data like GovTrack. What’s different is a section linking to official Congressional statements issued by their offices (and a cleaner visual layout, in my opinion).