I want to stock up on some cheap parts for projects. What are your favorite parts, particularly capacitors, such s trimmers, and RF capacitors, not for high power, just with good characteristics. For trimmers, good would be able to fit on a PCB trace, having some easy means of changing the value, (screw slot is okay) high Q, relatively high capacitance/size ratio, modern, wont drift in value, tabs in a straight line and low profile. Also what is a brand of cheap but decent ceramic caps that are good for RF?
Also, are any of the cheap Chinese RF inductors good, with a high self resonant frequency and Q for their inductance? I'd like to buy a bunch of miscellaneous SMD-ready RF parts for cheap on LCSC to have around and try them out but I have no idea what brands might be good.
Also cheap SMD baluns/transformers? (better than the ones I can make myself)