Nube has a couple questions

As of right now I do not own a printer, but I am buying one. I getting a cheap $120 thing off Amazonky.
I am not interested in neatness or how smooth lines are or how big my work area is. I don’t even care about those things you call strings everywhere. I need to make a dozen or so little snap in brackets to hold circuit boards in a console I’m building. What I need to know is what is the strongest filament that I need to use? My biggest parts will only be around 3"w x 5"d x 2"h and then some smaller clamps needed also. Once I make these little clamps / brackets the printer will be tossed in the closet until I start my project. So can you give me an idea on what type of filament to use. Please