There are only two manufacturers for these range of high frequency probes, Tek and Hioki. I've never seen the Hioki branded probes for sale but they may be available inside Japan. You will see them available as:
Agilent/Keysight: N2782,N2783 (proprietary but well known interface that happens to match your scope)
Lecroy: CP030,CP031 (proprietary interface, no known adaptions?)
Cheaper and easier might be the indigenous Tek probes:
Tektronix: TCP312,TCP305
They run from a bulky power supply which has a convenient BNC output and are more common than the above probes that meet your edge case requirements.
Current probes for 15A RMS are much more common, and as with all current measurements you can play tricks with impedance and windings to change their response. We make use of "dumb" DC clamps for those higher DC currents you are looking at.