Choose a name combo from each group and make a sib set. One name per group.
You should use all names making 10 sib sets, 3 in each sib set.
Group one:
Jett, Thomas, Forrest, Whitney, Sara, Sumner, Christopher, David, Fenna, Olivia
Group two:
Laurel, Madeline, River, Kendall, Sean, Wilder, James, Luke, Sienna, Xanthe
Group three:
Jaxon, Emma, Violet, Sage, Gabriel, Austin, Lakyn, Callahan, Elliot, Ryder