How much current will the diode have to handle?Schema:
Any recommendations for a common part#?
Do you want through-hole or surface mount?
For around 500mA or less with through-hole, a 1N5817 would probably do.
For surface mount, you’d probably want to look at forward current capability, low forward voltage, size and cost.
Note that usually a diode with higher than required current capability will have a lower voltage drop at low currents. Look at the forward voltage graph in the datasheet.