sona lux zyra when to draft?

I mean u can go with the classical MF support vs Zyra or u can go a little more engagy with Nautilus aftershock since he can get in her face or blitz. Sona i would say Blitz is a good counter she is dead when u hit a hook so can u say thresh is fine vs her.

Main Sona, Diamond player here, I will ban Blitz every game. other than that, I don't like to against with good Brand, Morg, Zyra players.
I will be fine against thresh or pretty much any other Melee support.