Lilli all of my older ones are from Eurobulb and they do offer free freight if you order for 100 Euro, but I somewhat hesitate to recommend them. Last year I ordered from
https://nijssentuin.nl/ . They have a truly wonderful assortment and the quality looked great to me.
It's also worth having a look at Fluwels assortment. At around 2 Euro for every 24+ size crown imperial bulb, I don't think you can find any cheaper. They only have the common crown imperials as they are more about tulips and daffodils, but their quality is always very good. Usually they have the biggest bulbs of all companies I tried. Although of course an occasional bad bulb may slip by, they have always delivered bulbs true to name and they also always sent a nice little gift with the order:
https://www.fluwel.com/special....
