The P-39/M-9 combo woul've been about the only one tank buster that could take care about itself. Or P-63/M-9, for 1944 and later.
The M10 was a 'better M4', our Charles Bronson has articles covering the cannons in the 'Armament' subforum.
The M10 was a 'better M4', our Charles Bronson has articles covering the cannons in the 'Armament' subforum.