KCl will "react" with Ca(NO3)2, but no precipitate will form because CaCl2 and KNO3 are both soluble
KCl will react with NaBr because K is "stronger" than Na, but KBr and NaCl are both soluble, so no precipitate will form.
KCl will react with Pb(NO3)2 to form PbCl2 and KNO3, but although KNO3 is soluble, PbCl2 is not. A precipitate will form.
KCl will react with Ba(NO3)2 to form BaCl2 and KNO3, but both are soluble so no precipitate will form.
KCl will react withNaCl, but, since the ani0n is shared, the same salts form. Both are soluble.
In summary, your question is/should be about solubility, not whether a chemical reaction takes place.