Today I'm taking on my work trip to the Gulf Region an Esterbrook Estie Oversize, with an old MB Burgundy Red cartridge, and Pilot Justus with Waterman's Harmonius Green filled converter
Fairly uncommon Eversharp Skyline Streamliner. Kind of an economy model but they often have some great soft nibs. Cheaper clip -- not over the top of the derby -- and no cap bands.