You could consider Put

Write cover call on 1/4 of your positiion，and use that premium to cover expense on put. For example, Let's say you have 400 shares of QQQ, you could

      a: Sell covered all for 1 contract of QQQ 475 call for $10, which gives you $1000 premium

      b: Buy 4 contract of QQQ 470 put for $5 each, which cost you $2000.

      In this trade,  you use cover call to cover half of the cost for put (you net cost is $1000)

if QQQ keeps going up, you essentially sell 1/4 of your position at 475, plus losing that entire $1000 option

 If QQQ drops, the 4 put contract will protect your profit from 470