Zeke -
Ezekiel (obviously)
Artaxerxes,
Issachar (yes, it's a stretch),
Meshach (ditto),
Zacchaeus
Kai -
Zedekiah,
Zachariah,
Micaiah,
Malachi,
Caiaphas,
Kenaniah
Tadhg is prn TYG like the 1st syllable in tiger. You're right, though, you'd have to explain spelling & prn constantly.