Need help investing my coins (750K)

Hi everyone,

It's my first time that i take HUT seriously and that i take tradable rewards and sell all tradable cards. i have saved 750K coins so far. I am hoping to save enough to buy Gretz or Mario. I think i should get there in 2 months or so with tradable rewards every week.

I know i could use my coins to make more coins and essentially get many millions of coins, but i don't know how to go about it. Anyone willing to teach me the market? Should i focus on buying a few Fantasy cards?

My team is already stacked with untradable cards and i'm happy with it so i will not buy any cards for a while.

Let me know