I won't attempt specific recommendations but I ALWAYS RECOMMEND running speaker design software, I've used
WinISD (FREE).
You plug-in the Thele-Small parameters for your potential drivers and then choose a basic design (sealed or ported, etc,) and the software will recommend the box size, and port dimensions (if you choose ported) and it will plot the predicted frequency response. Then you can experiment with modeling different changes to the size & port if you want to extend the bass, etc. (There are always trade-offs and extending the bass might make a bump in the bass response, etc.)