Your master has work hard and invested his time and wealth into a business to take care and support you. He didn’t need to. He didn’t have to take on that stress and risk. So you should have his children not other men’s....
It’s hard to find a wife but here are some ideas on ways to find a wife:
Meet them at Church
Get your family to arrange a marriage
Meet a wife at an escort agency
Work for your master and ask to marry his servants or daughters