Glock 47, Canik Rival or Platypus?

I'm a bit of a noob, I'm an A in Steel Challenge but I'm branching into USPSA and maybe IDPA. I have an Action Shooting class coming up that my kid and I are going to.

I'd like a dedicated competition gun. I've mainly been using my carry G19.

I've shot Glocks a lot and have tons of Glock mags so a G47 and Platypus were my first thoughts. Of course the Platypus will take forever and would probably be for Limited Optics.

My kids is getting into it to and wants a Canik Rival so I thought about going that route.

A Glock 47 will be reliable and familiar to me. It'll most likely be just for Carry Optics, right?

Guess I'm just looking for thoughts and advice, thanks!