Well Mechwarrior graduates of the Drac's premier academy that were not getting mechs in '52 or '53? formed into a C3 company ended up with . . . LRM Carriers, Pegasus, and Lightnings IIRC.
Also remember the Dracs have some of their own vehicle variants- like the J Edgar (Kurita) which has flamers. The Dracs also seemed to be big on the Pegasus, quite a few of the upgraded Peggy designs were theirs- and they carry C3 too. They might also have old original Axel tanks, I cannot remember if that was built before the Republic was formed or not.
Like most things, it might be best to check the MUL and realize the Genyosha is getting some of the best gear and they will not be opposed to playing as a team.
So if you want a C3 company . . . well, finding a dual vehicle master is problematic, I thought the Schil had a version with 2 but either I am overlooking it or remembering wrong. It would be the easiest to make a company master since it is a Omni. The last BC anthology, Gray something, had the story I referenced earlier with a cadre's vehicle company, they had refitted a Lightning to carry 2 C3 masters though I do not think we have sheets for it.