I am looking to contribute to striker funds, if possible. I am located in the US, hence why I choose it.
I am hoping for striker funds that would be effective enough to make change. In other words, they may be the last thing a group of workers needed to decide to strike.
I am hoping the fund is efficient in managing its funds, rather than a significant fraction going to administrative costs. Very preferred if the fund's financials are fully transparent.
Any recommendations?
It will probably be most effective to build locally: get plugged in on local labor fights and help build solidarity funds. Solidarity funds for small groups of workers are usually just cash funds managed by the workers themselves with zero administrative overhead.
Some of them might not even have a fund and you can help them out by starting one. Tabling at local events for their fund and recruiting others and so on. You'll amplify your impact a lot by fundraising from others and getting more people involved.