[Mesh] Recommended APs that can do wireless repeating?

Hello Sudo Mesh, I moved into a new house and the connection in my room is very weak. They discussed that we could purchase a wireless repeater. What would be a good piece of hardware that could act as a wirless repeater and as a sudomesh device? If they aren't interested in replacing their crappy cablemodem-AP, what's the right setup here? Two sudo mesh nodes, one wired into the cablemodem, and another closer to my bedroom that's part of the mesh? -notconfusing?