Individuals are all different and have different needs. I agree entirely with the plan to speak to other experienced jet flyers to get some info, and clearly in the US you will need someone to help you get your waiver, but the scaremongering regarding modern turbine models is a bit overdone in my opinion.

Turbines available from the big manufacturers are very reliable so don’t require a huge amount of expertise to operate any more but they do need care and respect.

The trainer jets are easier to fly (and some fly pretty well) but not all people need one. I didn’t and my first jet was second hand and I had over 100 flights with it before I wore it out. A F-15 or F-16 might be ok depending on your ability and experience (albeit if you go for a scale F-16 with fancy gear it could be a little less resilient to bumpy landings).

You don’t really need to stress too much about battery types, high flow fittings and all the million other ‘options’. You just need a good quality airframe, with reputable equipment and unless you go mega huge or tiny (i.e. anywhere in the 44-160 size band will be ok) you shouldn’t have many major problems.