There is a section called "in search of"on this forum - where people can post for sewing/quilting related items they are looking for such as fabrics, patterns, books, rulers, etc.
As others have said, a picture - or a link to a picture - is helpful.
For me, if a picture is not available, a very detailed description, such as
" fabric, medium blue with 1 inch white kittens playing with red yarn" would be helpful.
A description, such as "Moda, 123456" is not.