3/16" line is easy enough to bend by hand. Just don't kink it, bend it over your thumb. 5/16 line for tranny cooling or stock fuel lines is much tougher. I use a bender for small radius bends.
I use and Imperial flare tool, ~ $70. Not as slick as a hydraulic flare tool ($300+), but makes nice flares. The $9 harbor freight or even the $18 craftsman seem to work like crap. buy or borrow a good flare tool. DOUBLE flares, as 2 step flare, is required for brake lines.
If only doing 1 car, I once bought a kit from In-Line Tube....very nice stuff AND it has the armourflex shielding like OEM.