Provider	Storage	Per Year
Google Drive (searchable)	2TB	$          100
Apple iCloud (can be shared with family)	2TB	$          120
Dropbox (searchable, best sync engine)	2TB	$          200
Backblaze B2	2TB	$          120
Mega	1Tb	$          144
pCloud	2TB	$          100
OVH SoYouStart	2TB	$          360
DreamObjects (DreamHost)	2TB	$          600
OneDrive	1TB	$          70
MediaFire	1TB	$          30

Notes:

• 2TB is the sweet spot for me; YMMV.
• iOS does not seem to search Google Drive like it does Dropbox
• Google’s One (https://one.google.com/) may make Google’s offering more attractive
• Google does a lot of rate-limiting apparently
• Microsoft is giving you Office 365 (which you’d have to pay for anyways) with the 1Tb
• pCloud: I’d trust Google over pCloud… and Drive is searchable, has an excellent API and is probably supported by a lot more tools and services.
• iCloud: The worst by far in terms of performance; sync is slower than molasses from India. And they ($AAPL) don’t care. With Google Photos, iCloud’s limited advantage of deep integration with iOS Photos is not as relevant.
• MediaFire: No search;

Also see https://rclone.org/