I used to want 2 kids by adoption and 2 by birth.
It just hasn't worked out that way, and in this stage of life, my goals have shifted to other things besides bearing and raising children (such as travel, missions, and volunteer work.)
In the meantime, I sponsor children from several different countries through my old adoption agency's program. I really like it because they set specific goals for each child (help them get through an educational system, help their family find a better job for more economic stability, etc.) and once the goal is met, they move on to help another child, so it's not an indefinite welfare system.
In my time of participation in the program (over several years), at least 3 of "my" sponsored children have been adopted into families of their own. I'm currently worried about one of "my" little girls (I see them as at least partially "mine" in a small way) whom I especially identify with because they keep testing her to see if she has a particular illness, and I keep hoping she'll be spared from this.
God-willing, I hope to increase the number of children I'm able to sponsor every year. Even though I don't believe I'm parental material myself, I have a personal belief that I can still be a support to those who are and the children who need them.