Best miners to invest in for Mining Home Business

Starting a new mining home business, looking to get several L7s and maybe some E9s when they are available. Thoughts? Is vosk interested in pool of miners to see if we can get a deeper discount?
Anyone else looking to buy these soon as well?

I would love an L7 after watching Vosks review. I’m new to the field and wondering where a safe place to purchase from. Directly from or another trusted company. A pool purchase would be sweet.