If you have enough money these day, you can purchase children. The common term for this is surrogacy.
It seems contradictory but if you want to adopt a child, there are tons of hoops to jump through including background checks and various interviews.
However, if you decide to use surrogacy, all you have to do is pay for the egg, sperm, and surrogate, and you have a legally protected way to create child no questions asked. The only limiting factor is cost.