Dear 8 Notes,
Hi, please tell the best brand of grand pianos out there!
Yours sincerly,
Mr. Paul Carrell

Okay.
First of all you can't have the PERFECT grand piano but I have a few suggestions. A fairly popular brand is Baldwin, used by quite a few musicains, Or if you're looking for uprights I suggest a Lindsay.

The most prestigious brand of grand piano is of course Steinway. It's also probably the best. The black Yamaha's (don't know the model name I'm afraid) are usually considered the best upright pianos.

Steinway and Sons are famous for their grand pianos. Bohemia is also a very nice brand. Not sure if they make grands though