I wouldn't concentrate on fast bearing, more like what you desire on a apple, sweet, tart, juicy, cooking etc. then, should it be early, mid season or late variety, storage capabilities.
Perhaps a little early to make a decision, check out your local farmers market in the fall and see what people grow and taste some.
Plant your root stock first and graft over the next several years, no need to hurry,....if you do, it can bit you.

Prairie spy ,honey crisp, and a variety of wild crabs are what I currently grow and they took 5-12 years to come into production depending on variety. People around here grow red delicious,Granny Smith, Winesap, Jonathan to name just a few. As I get older I am getting impatient waiting for varieties that take 10years to produce apples. I figured this time I will graft my Arkansas blacks etc and the others I mentioned on some of my 50 trees but graft faster bearing apples on the others so it does not sting as bad waiting for apples.

Most apples take about 5 years when grafting to young root stock.

>>Recently I decided to plant a new section of Orchard with the standard Antanovka Apple. Cant tell if you have these planted or not, ...if they're older tees and you top graft, you'll see a crop much sooner on most varieties.

Planting these this year and will bench graft them. What I don't get around to grafting this year I was planning to rind graft later.

Doesn't the rootstock determine the timing ? A bud 9 honey crisp will produce much fast than a bud 118. The roots matter more than the top work grafts.

Ben that's a great point and partially true a rootstock has some influence but not 100%. The scion wood also determines the speed at which you get apples. I think many yellow and gold apples produce faster than other apples. So one scion will produce on standard root stock in 5 years but another will take 10. All produce faster of course on dwarf rootstock than standard. A standard apple like these I'm planting always take longer to produce but typically live longer and produce more over time. Dwarfs are typically not good choices for the dirt we have here because it's heavy lome and clay. Few dwarfs like our soil . See this link and it will make more sense why I chose this variety for rootstock http://waldenheightsnursery.com/store/rootstocks/antonovka-rootstock I also grow MM111 rootstock for similar reasons http://bighorsecreekfarm.com/rootstock-information-2/