The billing software I use to keep track of my hours/clients/invoices etc. is no longer supported by the manufacturer, and I have to find something else. Is it off-topic here to ask for a suggestion? I could swear I had seen this question here already, but I'm not finding it.
I see you made the post already, but just for future reference:
The answer Abby links to is pretty old and dusty, but I think it still holds true today. As long as the recommendation question ties in with design (even on the business side of things) then I think the question has a welcome place in our community and can be categorized under software-recommendations