I'm assuming your yard is still under construction and you can't plant now. If they were mine I would place them in 5 gallon bucket with peat. Don't just dump them in. Place as many as possible with out touching each other in a layer then cover with peat and another layer. One bucket can hold a lot. I did this when we moved 700 miles. I also put a pvc pipe with a zillion holes drilled in it down into the center for better air flow at the bottom. 98% grew after being stored like that for 4 months.

If you can spread them out so any foliage can dry off, and dirt. In the shade and protected from rain/passing feet.

When they are dry and the foliage comes away easily you can clean off the old leaves and put the clean bulbs into those big net baggies used for buying bulk quantities of onions. Whatever you store in needs to let the air through.

Then they can be hung up in a cool area of the garden shed, basement, or garden shelter, with a permanent label in there to say what sort they are.

Put a note on your calendar to remind yourself to plant again later in the year. Or put them in the fridge if that's necessary in your area.

You might need to give some protection from mousies and pest insects, too.