I am thinking about replacing my quick release lever with locking skewers, which compnay makes the best skewers, also if I get the skewers, would I still have to lock up the front tire, I use a U-lock for the rear tire and a cable for the front that is attached to the Ulock

Would I have to get a skewer for the rear tire as well even though I use a ulock to lock up the rear tire?