Just from doing online research about what people say about these brands…
Mezz and Schon both have gotten the most consistently good feedback online. People rarely say bad things about their cues.
Predator and Cuetec are well known for their low deflection / carbon fiber technology, although their hit feedback (especially with Predator) is a bit polarizing.
Pechauer and Jacoby seem to make pretty good traditional wood custom cues.
Joss and OB are nice options as well, albeit with less consistently good feedback compared to the ones mentioned above.
Lucasi and Viking seem to provide good value for the money, they are usually more affordable and made offshore.
McDermott and Meucci seem to get very polarizing feedback, I would say if you can find one from the brands above go for those instead.