Knitting -- ok not really, this is about crochet

So the news in the USA is that DMC Cebelia, which used to be the gold standard of crochet thread, is being discontinued. At least, US retailers like Herrschners will tell you so, because that's what DMC is telling them. However DMC told me that it was available as a special order, and a site in Canada was told that same thing. They did a good job for me and soon I should I have what I need to finish a large project.

What's the deal? This is the thread that people use for tatting, for Irish lace, for lace edgings, for doilies and tablecloths and coverlids in the classic Waldrep books published by Dover. You can also crochet with yarn to make bedspreads and clothing and even dolls or doll clothing; Purple Kitty has lots of free patterns. But if there's an Irish lace pattern out there that uses something larger than size 20 thread, you need to send me to the website that has the book title or the discussion or the pattern cos all my pattern books use thread, not yarn.

If you are in the USA and have a lace pattern you can't live without working in crochet, you still have some choices.
Coats, which used to produce the classic Big Ball thread, has Aunt Lydia's, which is available at Joann's and some other places.
Herrschners has their own brand: https://www.yarn.com/categories/crochet-thread
Red Heart is available at Yarnspirations.
WEBS has several brands, some of which come in cones for large projects:
https://www.yarn.com/categories/crochet-thread

DMC embroidery floss seems to be alive and well. The retailer that is helping me out says it's just the crochet thread that is being discontinued, except for these special orders.

But in case you want something unusual, did you know that there is a linen embroidery thread in lots of colors?  Search the web for places that will ship Londonderry thread to the US. The sizing information is different from DMC. Try the PurlSoho site which lists several sizes of Londonderry.
https://www.purlsoho.com/tools/thread.html

This page will explain the sizing to you.
https://www.threadneedlestreet.com/linthrd.htm

Notice that PurlSoho also sells Trebizond silk embroidery thread. The thing about working with silk thread is that it will catch on your fingers. The smallest amount of housework will roughen your fingers causing these catches. Embroidering with silk used to be a major sign of what a lady you were, because you didn't do housework and your fingers were perfectly smooth. Another brand is Au Ver in literally hundreds of colors, as well  as Soie d'Alger.