I prefer Goodejuice, which is also probably the cheapest. There is a question if they're true 100% NET. If you like the musty grass note of many NETs, they don't have it. And some (patriot) have a flavor not found in any other juice. I almost entirely use them for my low power pocket vapes. Something really special can happen with their flavors with milkshake-through-a-straw tight airflow and goes completely away otherwise. Also they need dilution to be right for higher output devices but I wouldn't be surprised if one of them could match Black Note if diluted to 1/10-1/5 strength. Low gunking for the flavor strength.
For my RDA I DIY with TA's and hybrids, including some success with Stixx Mixx.