Is there a champ similar to Ahri but AD?

Ezreal

Lucian or Ezreal. You can also do AD ahri but don't take it ranked.

Closest one I can think of would be graves. Talon would be close I guess? You could play AD ahri if you want to though.

I would've guessed Irelia, but then again... I don't really play AD champions.

That depends one what parts of Ahri's kit you are asking about.

Three dashes, sustain, hard CC, and true damage?

The closest is probably Camille.

Lucian maybe? He dashes a lot.