There are a few more:

1) Vendors list ^{[by asic miner value]}:

2) "Miners" tab on whattomine:

• After visiting each of the respective miner's pages, you'll have two choices:
  
  
  • Look for the "Manufacturer page" ^{[e.g. like this]}.
  • Buy from "other distributors" ^{[e.g. like this]}.

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Take note: No matter which route you decide to take, always DYOR ^{[I'm not vouching]}.