[dghlsakjg]

Jlcpcb has the easiest and most affordable service. They have a library of pre selected parts that you have to choose from, but it is pretty comprehensive (300k or so to choose from). They are the only ones that do the pre-selected parts library thing, but it also makes them SO much cheaper and faster.

They also have their own free eda software to design the schematic and pcb that links up with their parts library. Easy eda. It puts out a generic gerber file and bom too so you can shop around if you want to double check what the cost will be at another producer. Kicad is another alternative for PCB design.