Ask HN: What SaaS/PaaS/IaaS would you recommend to others?
Also mention any services you would recommend staying away from.
I have used JIRA, TFS/VSTS, Trello and other in production on various products so this opinion is based on years of experience and pain with the 'wrong tool'.
For small businesses (barber, coffee shop,..) I would recommend www.reviewshift.com to manage their online reviews proactively.