Luke, thanks for taking your time :-).
I made some changes clarifying (I hope) the problems I wanted to solve. Indeed, it's not really an elevator pitch.

I admit that most of the time, you get started or look for one specific coin...and then for an exchange... but in the long run, in my experience, I still bumped into these kind of questions (like when kucoin entered the marketor binance and kraken went down)... so this got me in motion.

I'm quite fluent working & playing with excel...so it didn't take loads of time ... but still enough to first listen to some feedback... to see where it provides the most added value before proceeding...

So thanks again!