My first choice would be a T C Scout ... but that's just me.
More traditional choices might be a black powder revolver like an Pietta 1858, Lyman and Traditions make good products also.
Ditto on the scout if you don't mind sgl shot reloading sequence. Having owned an orig Tindell that the scout was patterned after is where I get my claim. I'm just not much of a BP pistolero, just long guns trip my trigger ( was that a pun ?)..............Mossie
I'm the same Mossie, pistols just don't interest me in comparison to a rifle.
If we got a BP club around here again that had shoots and there was a pistol event, then I'd probably get one solely for that purpose.