If you're low on time but want to participate in activism, I highly recommend looking for local causes you align with because 1) Local politics often get heavily overlooked because only the federal U.S. election seems widely important, and 2) Local issues are often going to be lower barrier to entry for local people because you already have some experiential knowledge of the issue, so you don't have to spend as much time researching things to be informed and make a difference. Ex: I don't know much about gang violence (stopping or preventing it) because I was lucky enough to grow up in an area with low gang violence. Even though it's an issue I care about, it's a lot harder for me to become active in stopping gang violence because I do not regularly come into contact with gangs, and because of this, I'd have to do a metric fuck ton of research into ways that I can help stop gang violence in places that have them or prevent gangs from ever moving in here (i.e. through national social media campaigns, reading educational materials, donating to the right orgs, etc.). However, I did grow up in an area with a lot of poverty, and my experiential knowledge of what people need vs. what's hardest to get made me very good at helping to establish and facilitate mutual aid networks without doing much additional research. Ex: When it came time to put out my fliers for one of my mutual aid group chats, I knew where the poor areas of town were without any additional research. However, had I been trying to do something similar one town over, I'd have to do significant research on where the low-income regions of that town are located. It's easier to get involved in issues you already have some background knowledge of, and just because it's easier doesn't make it any less impactful or important.
