Up until last week, a Kel-Tec PF9 backed by a Kel-Tec P32, and a reload for the P32 (I figure that, if further discretion in carry is needed, it's the belt gun that will get ditched.)
Last week, after getting a chance to test a Taurus G2C purchased almost two years ago, and a Ruger LCP-MAX purchased one month ago, they moved up to the front of the carry pool, and there is a reload for the MAX.
I also carry a knife, but I do not consider it "less-lethal", so I chose "firearm and reload" only.