Power Supply For Mini Asics

I just ordered a Goldshell LB Box just to get my feet wet in asic mining and see if this is something I want to pursue even farther. What power supply would you recommend off of Amazon that would not only power my LB Box but also give me ability to add some more mini asic miners in the future if I decide to buy more? Thanks for any help you may be able to give.

Bitmain apw7
1000w on 120v
1800w on 240v

what about L7 9500 3425W? its 220v and I’m in US