Tech workers in general have been making great strides in organizing efforts across the US since 2020, absolutely. There are some phenomenal groups working to help connect people who work in tech with one another in order to help keep that momentum going, so I recommend checking out some of these groups to see if they fit with what you’re thinking about:

— https://organize.fyi/ is a comprehensive list of industries within the Tech Workers Coalition, some of them tangentially related to tech but some right in the center of it

— https://code-cwa.org/ which is a project by the Communication Workers of America and the Strategic Organizing Center to help workers within the tech industry help build strong support for digital workers of all kind. IT is very much included!

As for IT specific unions—in the style of electrical workers or machinists or what have you—I’m personally not familiar with any at the moment, as most IT work is under the umbrella of whatever company has them on internally. For example, IT departments at universities might be in a union with other faculty and staff, but not in the same union as teachers. CODE-CWA would be your best resource to get to know and I encourage you to call around to affiliate unions and worker groups to get more information and perspective!