Are you looking for a specific type of recipe? If not you can use any general bread recipe (like a white or a wheat) and shap it into a round loaf instead of rolling it and putting it into a standard bread pan. All you need ot do is put it onto a sheet pan. You don't even need a specific bread pan for it !
by "round" do you mean disk shape or ball shaped? If using a soft dough, a ball shape will flatten into a more or less disk confinguration. For a ball shaped loaf, a somewhat drier or stiffer dough is necessary.
I had good luck making a round (sort of cylindrical) loaf recently by using a small round pyrex casserole dish. The soft dough rose nicely inches above the rim. Made a loaf with nice proportions
I use round bannetons which are small wicker baskets lined with raw linen cloth. The are not expensive. I get mine in Paris but as I remember they are also available at KAF online.