Yes, I'll pm you. The market I'm using is probably the 'to-go' place right now. You can basically find anything in this place and it has a very simple interface. It's fast and the vendors seem to be legit.
I'm not sure if I recommend nightmare. I checked it out but it doesn't seem to compare to Empire, which is the market I'm using. It also doesn't have that many listings and many vendors seem to be very fishy.
Yeah, you need to use Tor. If you're located in Europe, I wouldn't necessary order from NL, that's my advice. The customs are very careful when it comes to deliveries from NL. They know it's the drug distribution hotspot within Europe and they will scan the deliveries.
I'll DM you. Dream was popular but they left business and then everyone fled to Wallstreet - but they used the opportunity and escaped with all the bitcoins stored in the escrow wallets with an estimated worth of several million dollars. Germany seized their servers and they got arrested quickly after and that's the end of the story.
I can PM you.