This morning a "Special offer" button showed up in Proton Mail for me offering a 1 year Proton Family plan for 33% off. That comes out to $239.88 (USD) per year. https://proton.me/mail/black-friday
I heard if you have unlimited, you can upgrade to Visionary. I only have VPN Plus, but I am curious if you can first upgrade to Unlimited, then Visionary.