Its also rated for only 20V, has double the on-resistance...

Note current ratings are not interesting, power ratings and on-resistance are what you look to to size a MOSFET,
the current rating is the max power rating in disguise (and assuming infinite heatsink too, so its not normally realistic).

Calculate the actual power you'll dissipate using I-squared-R. Compare to what the device and heatsinking can take. This will help you choose the on-resistance wisely.

Pick a voltage rating double your circuit voltage for good measure - but picking a very high voltage rated device isn't wise, the on-resistance is necessarily higher for high voltage devices, all else being equal.

Anyway there are many thousands of logic-level MOSFETs out there to choose from, set you parameters and do a parametric search on the website of the electronics supplier of choice...