Any recommendations for BOS?
Arrived on DL Y award.
Departing on AC J revenue.
Have Amex plat and CSR cards.
AC does not have a lounge in BOS. Their boarding area is a separate enclave in TB, not connected to the main sections of TB that have both United and AA lounges. You have access to UA lounge with your AC J ticket. To get to UA lounge from AC check in, you need to walk across parking lot, and go through security. With TSA pre it should be quick. They may tell you, “you know that AC has a separate secure area, right?!”
Sort of a PIA but if you have time to kill, UA lounge is fine. No significant kosher items as I recall.
PP card only useful for TC and TE.
You could have accessed Delta Lounge in TA with your Plat card when you arrived.