The ones around a thousand pounds are pretty good if you are looking for a fixie for a grand.
Seriously though, that's the kind of question that is inviting grief. Do some research, decide what you mean by 'best', ask more specific questions, show you have put some effort in yourself. Then people will be happy to help and not just feel like you are being lazy and expecting them to do the work for you.
The ones around a thousand pounds are pretty good if you are looking for a fixie for a grand.
Seriously though, that's the kind of question that is inviting grief. Do some research, decide what you mean by 'best', ask more specific questions, show you have put some effort in yourself. Then people will be happy to help and not just feel like you are being lazy and expecting them to do the work for you.