I am a student pilot looking to purchase an E-AB plane second hand as I finish my student certificate. I am considering a few different models, including some that are less common.

My major concern if I buy a less common aircraft is, what transition requirements may I face from insurers and (especially if I cannot find a CFI with time in the model) how can I meet them.

Just for clarification, I am mostly looking at Avid Flyers and Clones.