What would be the best asteroid to live on that doesn't orbit a planet? And isn't round?
128 Nemesis. Because who wouldn't want to live on an asteroid named Nemesis?
in few years i might want some too. how and from where you can buy meteorites pieces?
Oh gosh, there are tons of meteorite traders and sellers out there, and I've bought from several over the years. My most recent came from a dealer in Arizona who both buys from other collectors and travels to strewn fields to find new ones.
Just try looking around online. Be sure to do your homework before you buy, though. Obviously try to make sure the seller is reputable. (You can eBay meteorites, but this can be dubious). You'll want to know what a particular meteorite looks like and how much they tend to sell for by weight, so that you don't get ripped off. You'll also want to know how to care for the meteorite. Meteorites contain elemental iron. Iron rusts. So you'll want to take steps to prevent further corrosion of your meteorite. This is especially true for polished slices of iron meteorites. With complete stones you can be less cautious.
Finally, give thought to what kind of meteorite interests you. Most people think of meteorites as small, pitted lumps of dark metal. These are iron meteorites, which are less common falls, but easier to find. It's possible to get iron meteorite fragments for fairly cheap, and they make great show-pieces. But there are lots of other types of meteorites, too, which can look very different and have interesting things about them.