

Old school electrician shop?
TL;DR I am looking for an electrician shop (not a contractor) where I could buy some lighbulb sockets with cables and on/off switches. Not really sure what's a good place to do so.
Context:
I am originally from Europe, but lived in the US for the past 20 years or so. When moving back, I brought a whole bunch of (IKEA) lamps with me, completely forgetting that light fixtures are not 110V/230V cross-compatible, and a simple "dumb" socket pass-through won't let me use them.
Back when I lived in Europe, I remember there being a lot of local electrician shops around. They'd fix up stuff, put together things like light sockets and wires etc. Not sure if these went the way of the dodo, or am I not looking carefully enough. I still see a lot of clothing alteration shops, keymakers, I think I spotted a watch repair somewhere even - but no electricians.
Any idea where I could get these done? (The idea is to keep the aesthetic parts of the lamps and swap the bulb sockets and cables to EU-compatible ones).