wondering if maybe the Beyerdynamic T5p Gen 2 is my next one
I would suggest trying the T5p G2 if you can, I would guess the reason you haven't got any other replies is that your requirements appear to be quite complex I for one have never tried the other headphones you listed.
I have compared the Focal Clear to the T5p G2 to me the law of diminishing returns applies, at more than twice the price I paid, to me the Clear sounded like an open version of the T5p, it was "better" in some areas but I kept the T5p in the end. The Clear was nowhere near as comfortable either.
Yes the T5p is a relatively "bright" headphone when compared to for example the Sennheiser HD-650 which I also own, but the two complement each other well if I fancy a complete change of sound signature.
I would suggest either buy the T5p from a retailer that accepts returns or try before you buy if you are unsure but I don't think you will be disappointed with it.