This is the wrong place to ask about getting into the market.
Back in January or so someone brought up this subject. When I suggested it would be a good time to start dollar-cost averaging into the market, I was promptly poo-poo’d.
I think the market has had too good a run to simply plop a pile of funds in right now. Prices have gotten ahead of earnings. But, assuming your time horizon is a decade or more, I would look for entry points to drop a few bucks in here and there.