Passively cooled R5 230s are old but readily available. The newest passively cooled AMD card I'm aware of is the XFX RX460 but it's hard to find. The RX550 is

Passively cooled R5 230s are old but readily available. The newest passively cooled AMD card I'm aware of is the XFX RX460 but it's hard to find. The RX550 is low power enough to not need a PSU connector but for some reason nobody has made a passively cooled version.