Fastmail Family is a good deal, and this page starts by saying so
$132 a year for six people is $22 each. For that you get a mail service run by people who have been doing it for over twenty years, apps that are genuinely nice to use every day, a calendar, contacts, and Masked Email — which is one of the better features anyone has shipped in this category.
If you are a household of up to six and any of that appeals, buy it. We would rather send you there than sell you something you will resent in a month. A comparison page that cannot name a competitor’s good plan is an advert wearing a table for a hat.
The honest gap at that size is $123 a year. Real money, but not life-changing money, and you are getting something concrete for it.