I use a thin cotton towel these days, draped over a colander or sieve of whatever size works for the loaf.
No more flour than what's already on the dough when it comes off the counter. I get no sticking problems.
What makes it work is the free circulation of air through the colander/sieve and the towel: the dough forms a light skin all around, even the downward-facing parts. If you don't have that circulation of air, water migrates to the surface of the dough and it sticks.
Many years ago I bought a couple yards of cotton duck fabric and sewed it as a liner into various baskets and whatnot. I even used some expanded steel mesh as a support for make long semi-cylindrical bannetons for baguettes. Good clean fun, though at some point I tossed them. In any case, any craft store will sell you cheap baskets; any thrift store will have colanders and whatnot for pennies. So you can make your own.