Being a second generation, too many planes to list. I would say the ideal starter set would be a number 3 (Old Stanley is the best choice for the money… but given some time most brands will not rattle…) and a block plane, I prefer a 1 3/4" bladed one, any will do similarly. If you're planning on jointing more then about two feet, move it up to (either) a number 4, 5 or 5 1/2. If you're building 10 foot tables, feel free to buy and store a number 6, 7 or 8. A 4 1/2 or 604 1/4 let alone the stuffed English planes are not a must, but if you feel you'll be turing a lot of your boards, this will save you a lot of pain pressing down on the board. A rabbit plane is a must, if you haven't purchased one of the 30+ types out there, I suggest getting one (or both if you have the money) of the Veritas angled rabbit plane with a fence. It won't be as thin a slot as your Stanley 90, but it'll make amazingly clean cuts on your tenons… which is why most of us own a rabbit anyway. If you need a reasonable price, grab a Stanley 78 for $10 anywhere old tools are sold, it'll work great. If you're looking at getting smaller dados then say a 90 can handle, I would suggest the Veritas detail rabbits… if you're not likely to, then their is no other purpose to get that tool.
If you're buying new, and not used, then the skewed blade has become extremely popular on modern models. I do suggest this, it will cut cleaner and faster. I would only rate it about twice as good… look at fine furniture from the 1800's, you'll notice they're all hacks, and clearly couldn't make due with their inferior tools. Oh, and the old wood moulding planes are great once you learn to use them, I suggest finding one (In good shape) with a pleasing shape for edge work and learn to use it. Having fed my fair share of lumber through 45's and 55's, a wooden molding plane is much faster to setup and nearly as easy to use. (Minus some pauses for blade adjustment)
Thus-
Stanley #3, 1 3/4" Blade Block plane, a Rabbit, and a pleasing molding plane. Any or all can be wood, metal, or transitional. All will build equally well as wood expands and contracts well beyond the .0001" tolerances expected from today's tools.