My experience is that the CMAX like a volt is best used mostly within its EV range
The CMAX is liked by some due to its layout but it likely has less usable space than your Prius and gets lower MPGs than expected meaning you might burn more fuel than a Prius if you drive mostly longer gas powered trips
Add that you may have to pay a lot more on registration means you need to carefully figure if it’s worth it for your use
The CMAX also has battery degradation issues which means as they age your EV range drops
The Niro and Kona twins are mostly OK and too new to really judge
But some have jerky shifting and transmission issues
They are much larger and less efficient than a Prius
https://www.kianiroforum.com/threads...-hybrids.8840/
The PIP I wouldn’t consider since a used Prime isn’t much more than a PIP with its very limited range
The Prime or Volt would be my go to for a plug in hybrid.
But it depends on how far and where you drive along with the taxes in your area
As suggested I would map out how much each will cost alongside a list of good and bad, if you need the space of a Prius there is nothing else like it
YMMV