Cobra Mk III is THE ship to go with if you're not looking to break records.
One of the biggest relative fuel scoops on a small ship, good shields even with lightweight D-rates, two slots for your ADS/DSS, then a choice between a smaller AFMU in favour of two SRVs, or one SRV in favour of a larger AFMU... Outfitting choices are great.
Two things I insist on that make me different to the exploration "meta". I use the 3A power distro', and 4A thrusters. Why? Because I prefer maximum performance under gravity's influence over a tiny, negligible increase in jump range.
If you pass on the DSS, which is not in fact essential to exploration, just nice because it reveals more information about bodies and you get paid a bit more... But if you pass on the DSS, you can fit a second AFMU. Serious option to consider if you're planning a particularly long expedition, as you can keep the two AFMUs in shape.