A Successor Holder
A beneficiary can be anyone
A successor holder must be a spouse or common-law partner
The beneficiary will receive the funds from your TFSA. They can also add those funds to their own TFSA if they have sufficient contribution room, which will allow them to benefit from tax-free growth.2
The successor holder will become the owner of your TFSA and can then transfer the funds to their own TFSA. This will not affect their contribution limits.