If you were going all-in the market right now...

If you were going all into the market right now, with the market hovering at a high, what strategy would you use? You could dollar cost average, but lets just say this is a 1 time go (I've spoken to a few wealth management companies who basically said they put your cash to work immediately).

I was thinking a collar is the good idea for the market at this particular state...but vol is low.

Your ideas?