First of all, lucky fish are exotic fish. If they are released into the wild, it will have a great impact on the local ecosystem, which may lead to more difficult living conditions for other animals.
Secondly, if you want to take better care of lucky fish, I suggest you think about why you don't want to keep them. Lucky fish also need to be taken care of. It is very important to ensure that they have enough food and clean water. If you can't provide the necessary care for lucky fish instead of simply releasing them or giving them away, then I suggest you learn how to take better care of lucky fish.
Finally, if you really can't keep lucky fish, I suggest you give it to experienced fish friends or resell it to people who need to raise fish. This can ensure that lucky fish get better care and avoid negative impact on the environment.
In a word, I don't recommend releasing them or simply giving them away. On the contrary, I suggest you find a new owner or resell it first, or learn to take better care of it. This can protect the health and environment of lucky fish and avoid unnecessary troubles.