I'm not really a very techno know how guy so i'm aiming to buy a plug and go zcash rig.
Like this one. expensive but I can' t build one anyways.
https://zcashminingrig.com/product/black-op-150-minnig/

Still out of budgetfor now but I can start saving for something cheaper but comparable. Most of the rigs in my price range are currently sold out.

Im in China so electricity is dirt cheap. And I have cold winters in this city. So i should have decent returns.