Bream generally feed by grazing over a wide area, so look for somewhere that’s weed-free, with a smooth or firm silty bottom. The backs of gravel bars are good spots, if the lake has them, because fish often use these as transit routes to travel around a venue.
A feast of particles laid down in close proximity will stop them in their tracks. If the silt is soft and smelly, I’d advise you to fish on top of any gravel where it’s free of muck and rubbish.
Traditionally, bream are usually caught at range, but that is not always necessary as they can be caught down the marginal shelf too. Most importantly, keep your eyes on the water at dawn and dusk when bream can very often give away their presence by rolling on the surface.