Yep what Virgo Hippy said is spot on. Something wide and bigger than 7'6" should be ok.
They call it a fun board in some places. I use a 7'6" funboard now and its a lot easier to paddle than a short board. I'm a bout 190lbs so gotta figure that in too.
The foam ones I dont know and wouldn't trust them to last a long time. They can "crease" and when that happens they're done. Im going on 8 years with the funboard so the fiberglass lasts a while even after some dings. I bought it @ Play it Again used sports stuff for 130.00
Hope that helps. Reminds me I need to get out the beach b4 the summer ends