flemish are big, but there anything but "meaty" all bone!
a flemish mix could work, (giant chins come to mind) or mixing in cali or newzealand, but then the question becomes Why? adding size just to add size without realy addimg meat seems silly to me and thats pretty much what ading FG would do...(great if your looking to get a bigger hide for tanning though!)
if you want good sized litters with great growth and nice meat to bone, id stick to new zealand, cali or a slightly smaller but still greatmeat bred florida whites...
if you want somehting a little more unuusal, chins, rex (standard not mini), champagne d'Argents ect
i personally decided to go with rex, i love the breed, they do make a nice meaty (though not as large or fast growing as the common meat breeds) and their fur is to die for (and i will be using the pelts so that played a part) there a good all around breed for me, i cna hopefully sell pet (and i would love to start showing too) and any that dont sell pet will make good fur/stew rabbits (prime pelt is older so they wontly make great fryers if i want good fur too)
however the origional plan was also more for rabbit meat for my dogs, so stewing rabbits would be fine meat for them...now ive decided i want to put some meat away for me too im thinking of adding a couple of Newzealand does to try and get some faster growth for some nice fryers.