Each program's own after-death page: the documents it asks for, how the request is submitted, how long it takes, and what its terms do with the account and anything of value in it.
183 programs

Avis Preferred points can pass to a family member after a death

Amazon Web Services reviews requests about an AWS account after a death case by case

Bandcamp reviews requests about a Bandcamp account after a death case by case

Blizzard Entertainment's terms forfeit Battle.net game library at death

Best Buy's terms forfeit Best Buy points at death

Best Western International reviews requests about Best Western Rewards points after a death case by case

Bonanza Worldwide reviews requests about a Bonanza account after a death case by case

British Airways' terms forfeit BA Avios at death

Bungie's terms forfeit Bungie game content at death

Burger King's terms forfeit Burger King Crowns at death

Canva reviews requests about a Canva account after a death case by case

Capital One Miles can pass to the estate after a death

Care.com reviews requests about a Care.com account after a death case by case

Chairish reviews requests about Chairish balance after a death case by case

Chase UR points can pass to the estate after a death

OpenAI's terms forfeit a ChatGPT account at death

Chick-fil-A's terms forfeit Chick-fil-A points at death

Chipotle Mexican Grill's terms forfeit Chipotle points at death

Choice Hotels International's terms forfeit Choice Privileges points at death

Citibank, N.A reviews requests about Citi ThankYou points after a death case by case