Each program's own planning page: whether it offers a legacy contact or inactive-account setting, what its terms say about transferring an account, and what to record for the person who will settle it.
183 programs

No successor designation

No successor designation

Legacy contact can be set up in advance; lifetime authorized users

No successor designation; lifetime transfers to another member and transferring the account

No successor designation

No successor designation

No successor designation; lifetime family pooling and gift purchases

No successor designation

Successor settings can be set up in advance; lifetime transferring the account

No successor designation; lifetime transfers to another member

No successor designation

No successor designation; lifetime transferring the account and transferring the domain to another registrant

No successor designation

No successor designation; lifetime transferring the account and authorized users

Inactive Account Manager can be set up in advance

No successor designation

No successor designation

No successor designation; lifetime transferring the account

No successor designation; lifetime gift purchases

No successor designation; lifetime transfers to another member and gift purchases