You don't have to put demands on the transmissions to stress the fluid. The transmission will do it all by itself.
Since you do NOT know what the factory fill is, blindly wanting a 'non-synthetic' isn't logical.
PZL, QS, Cast, Ams, Mxlf,.....are good choices. Any universal or multivehicle ATF, that mentions the zpec, from any of your local departments or autopart stores, should be looked into.
I'd use a full synth since certain Hondas don't have a long lasting tranny reputation.
And regardless of the ATF used, a relatively frequent ATF change schedule(drain/refills), aftermarket filtration, and extra cooling, should be considered.