I've heard portable/cordless angle grinders are used pretty commonly [1].

I didn't know there was any U.S. state (if that's what you mean by state) that makes it illegal merely to own lockpicks.

You might want to check out the TOOOL state laws page [2], it might be more nuanced than you think. For example you might be OK to own them but not travel with them. Or the burden might be on you to prove lack of intent - but if you only keep them in your own home, that would be easy.

[1] https://www.youtube.com/watch?v=ppZW-PppbtI [2] https://toool.us/laws.html