There is likely a saw frame in jewelry if you wanna test-drive.
For your own purchase, Rio Grande has several. The cheap ones (German and Swiss styles) are actually reasonably decent. People seem to love or hate the more expensive red Knew Concept one. Ymmv. I have not personally used it.
My preference from Rio is the Swiss one. (Prefer more than the German one). Relatively cheap, handle is comfortable, easy to switch blades, adjustable. It comes in regular and wide flavors. Recommend getting the smaller if it’ll fit to the center of your project. The wide one ok but more awkward (translates to more easily careening out of control = more broken blades). I only use my deep one if I’m working on something bigger.
Link to the inexpensive Swiss one I like most:
Also can get saw blades from Rio. There’s a chart for matching saw blade number to thickness of your material.
I like Herkules or Laser Gold brand blades. Don’t cheap out on saw blades. Life’s too short for the aggravation. Might consider the wax lubricant stuff. But can use beeswax or a candle in a pinch too. With what you’re cutting, who knows.
Of course, if you really wanna a beautiful saw that is well balanced and a dream to use…this one is awesome. (I have it too)
They also sell them through Ottofrei.com if you need blades too. One stop shopping
Personally, I’d test drive one in jewelry and see if a jewelers saw works for you.
If you’ve never used one, not hard, but a few tips and tricks to make things go smoothly and not bind/break blades. And yeah, you want extra blades
Ask if you need help on the how to use part. Lots of us can help there
You’ll likely find a bench pin useful if doing more interesting shapes.
There’s jewelers benches (right height) with bench pins in jewelry. Might stick a piece of leather or layers of paper under your circuit board so the soldering underneath doesn’t scar up the bench. Please
If you want an inexpensive portable bench pin for at home, this ones is great (or you could make it).
I also made sturdy frame from 2x4” drop offs (thx Home Depot bin) that I clamp to my desk at home for sawing and piercing. It puts the setup at an ergonomic level for sawing.
Main thing, wherever you saw, make sure it is rock-solid, no shimmy or movement or you’ll be cursed with more broken blades.