Can you have the door opening outwards? We have that and it makes it easier to access the machines.
Our door swings out, and the (condensing) tumble drier is stacked on top of the washing machine.
Due to pipework at the back, it needed to be a bit wider to ensure enough depth for that stack, so there is a narrow shelf (about 8 inches) along the side of the machines for washing capsules/conditioner and other cleaning stuff. And the ironing board JUST squeezes in between shelf and machines (about another 6 inches).
But because the shelf (actually 2 on top of each other) are high (the first is at about 5'), we were able to fit the dyson cordless stick vacuum cleaner under the bottom shelf and it swings in front of the washing machine to come off the wall. There's an Ikea holder for the iron, which is below the dyson on the wall, and a hook to hang the peg bag beside that on a carbiner. And the sweeping brush, mop, small brush and pan, and a basin, are all cluttered on the floor under the shelf at the back end, in front of the ironing board.
It means that the room holds a lot, but we do have to take the dyson, pegs and iron off the wall to get the ironing board out, for example. And the space on top of the tumble drier also holds things like spare kitchen roll, the washing basket, and ikea peg octopuses etc.