Long story short: tell your Congressfolk to pass the National Security Powers Act, the Children and Teens' Online Privacy Protection Act, the Women's Health Protection Act, the Pregnant Workers' Fairness Act, the Whistleblower Protection Improvements Act, and the Fourth Amendment is Not for Sale Act. Use the tools in the upper right-hand corner of this page (or, if you're on a cellphone, the bottom of this page) to find your Congressfolk's phone numbers, or use the email/petition tools in the following paragraphs.
Win Without War helps you tell your Congressfolk to pass S. 2391, the National Security Powers Act. S. 2391 would repeal all the authorizations to use military force (or AUMFs) relating to war in the Middle East, give Congress more authority over arms sales to other countries, and reform the National Emergencies Act, presumably so the next dunderhead who wants to build a border wall can't abuse it like the last one did. And if anyone tells you this would hamstring the President's ability to act, tell them that's a feature, not a bug. The President is only supposed to lead armies into battle after Congress declares war, not whenever the President feels like it.
Restore the Fourth helps you tell your Congressfolk to pass S. 1628, the Children and Teens’ Online Privacy Protection Act. S. 1628 would ban targeted advertising to children, require that internet corporations get consent before collecting data from children, allow parents and children to more easily delete personal data from private data brokers, and mandate a whole lot more transparency about this issue than we have now. We have the Children's Online Privacy Protection Act, or COPPA, but that became law over 20 years ago, and a lot's happened since then -- it's a lot easier to get targeted ads now, for example. S. 1628 would help update COPPA for modern times. Our kids deserve that, after all.
Daily Kos helps you tell your Congressfolk to pass H.R. 3755/S. 1975, the Women's Health Protection Act. The bill would essentially legalize abortion all across the land, in anticipation of our Supreme Court overturning Roe v. Wade, which action would allow the states to regulate abortion again, and would make it illegal for states to restrict access to abortion in the ways they've done it over the last decade. The most recent egregious example? The Texas law that lets literally anyone sue an abortion provider for performing an abortion! Never mind proving standing to sue, or even that harm was done to you! A court will strike that part of the Texas law down for those reasons fairly soon, but why make good Americans wait?
The ACLU helps you tell your Congressfolk to pass H.R. 1065/S. 1486, the Pregnant Workers Fairness Act, which would require bosses to make reasonable accommodations for workers who get pregnant -- that means more sit-down assignments wherever possible, more bathroom breaks, no firing of workers just for getting pregnant or refusing to hire workers who are just because they're pregnant. I shudder to think of the "objections" Republicans will throw up against this bill. I suspect they'll mostly be TEH TRIAL LAWYERZ!!!!! and TEH BOSSEZ CAN'TZ DOEZ TEH BOSSINGZ ANYMOREZ!!!!!, both of which will be revealed to be utter horsedoodle to anyone who reads the bill, or to anyone who's ever been fired because their boss wouldn't get them a chair.
The Project on Government Oversight helps you tell your Congressfolk to pass H.R. 2988, the Whistleblower Protection Improvement Act. Folks who blow the whistle on our government's corruption deserve our admiration, because they risk their careers and their personal lives when they do so; people who think they just live off the fat of a huge reward have obviously never blown the whistle on a damn thing in their lives. H.R. 2988 would better protect whistleblowers from retaliation at their jobs -- even if their boss is our President! -- and would give them more access to jury trials and speed up the process of rewarding them (if their whistleblowing merits it), so they can get on with their lives with minimal placing of sharp objects to their wrists after three years of being completely unable to work, just as a for-example. We need their good works, so we need to protect them.
Finally, the Center for Rights and Dissent, Free Press, Restore the Fourth, and the Project on Government Oversight all help you tell your Congressfolk to pass H.R. 2738/S. 1265, the Fourth Amendment is Not for Sale Act. H.R. 2378/S. 1265 would prevent third-party data broker corporations from selling your personal information to law enforcement personnel, because selling that personal data willy-nilly like that may be lucrative for people who really should go get a real job, but it contravenes our Fourth Amendment protections against unreasonable search and seizure. If law enforcement wants to get you, they should get a warrant first, but buying up big chunks of data from brokers lets police work around that. And they shouldn't get to work around it! If you're tempted to get all thin-blue-line about this, just imagine police harassing you because some web search you did in 2009 raised their antennae.