[cflsystems]

As far as I know none of the 3rd party modules are PHP7 ready. I have not tested mine but at least they are not encrypted anymore so can easily be adapted if anything.

With the rest of the 3rd party modules anyone using XC4 with PHP 7 is probably out of luck - alteredCart is no more and their modules will not be updated for sure, TXS - you said it, BCSE - I am pretty sure they will do this on request but other than that not hoping for it soon, SM - Jon has a big announcement to make which I suspect is dropping XC support so....

The only other Banner system I know of is the built-in one as Cherie mentioned. Unless you ask a developer to build you one from scratch.