There is a (POSABLE) new miner out called Dragonmint miner. I saw it on Ebay for preorder and on Bitcointalk. It's supposed to hit 16TH. If it is legit it's great for mining and it's not Bitmain's. Launch date is March/April My advice is to wait and see before putting any money into a preorder.
I saw this back in November
https://www.crypto-news.net/dragonmint-16t-miner-announced-and-available-for-pre-order/I cannot remember where but I also remember reading that they are $1595 each with a minimum order of 5. Any of us who have been around a long time will run a mile at the words 'Pre-Order' so I'll second your advice to wait until there is an actual product shipping.