We're flying TAP biz from EWR-LIS-BCN.

I have Amex Platinum for Priority Pass lounge access but are there other/nicer lounges available to us in both EWR and LIS as TAP J class pax?

We will have the maximum lounge time in EWR as we arrive there early morning from our positioning flight and will be there as soon as the TAP check-in counter opens.

We'll have a few hours in LIS as we have a 5-hour layover but of course some of that time will be spent in immigration/customs and going through security again.