Hello @danamarks
Thank you for reaching out on the community and telling us about your issue. I do apologize for the issue you're having. Currently in the Mac products there's no way to reorganize the accounts other than alphabetically. This feature is currently planned to be added into Quicken Mac but there's currently no ETA. I'll leave the thread down below where voting took place as well. I'm sorry for any inconvenience this has caused you.
https://community.quicken.com/discussion/7320975/add-option-to-sort-accounts-by-name-in-quicken-for-mac-71-legacy-votes#latest
Thanks,
Quicken Francisco