How can I diversify $7k across ETFs and stocks?
You don't really have a lot of money, and that isn't a criticism as much as that you are limited to diversification.  For example, I would estimate you can only have one or two stocks for a buy-write scheme.  Secondly you may be only to buy one fund with a high minimum investment, and a second fund with a smaller minimum investment.  Thirdly there is not a whole lot of money to make a large difference. One options might be to look at iShares since your are with Fidelity.  Trading those are commission free and the minimum investment is one share.  They offer many sector funds. Since you were in a CD ladder you might be looking for stability of principle.  If so you can look at USMV and PFF.  If you can tolerate a little more volatility DGRO. Having said that you seem interested in doing some buy-writes.  Why not mix and match?  Pick a stock, like INTC (for example not a recommendation), and buy-write with half the money and some combination of iShares for the rest.