The core team has produced the wallet in neptune-core itself.
Just as the bitcoin-core wallet is most trusted in bitcoin ecosystem, neptune-core should generally be considered the most trusted wallet in the neptune ecosystem. From the simple logic that anyone investing money or resources into neptune tokens is already implicitly trusting the neptune-core authors.
The team has produced three clients for accessing the wallet in neptune-core:
- neptune-cli: a cli wallet interface
- neptune-dashboard: a TUI wallet interface. (text interface, ascii-art)
- neptune-proton: a GUI wallet interface that runs on Mac, Linux, and Windows.
All of these require that neptune-core be running on the same device and fully synced to the network. None of these manage keys directly: they strictly provide an interface to the wallet built into neptune-core, which manages the keys.
neptune-proton is also laying cross-platform groundwork for wallets that would manage their own keys and run remotely, including a future web wallet and mobile wallets. But those are not being actively worked on yet.
At this time, I do not believe the core team is endorsing any third party wallet. And likely will not ever. Because it would require time and money to perform a thorough audit, and said audit would only be valid for a particular version/release.
It should also be noted that once succinctness is implemented, neptune light nodes become possible. A light node would not need to sync all the blocks, only the tip and any other blocks relevant to the wallet. This should open the door for wallet software that has a built-in neptune light node and can communicate directly with the neptune p2p network, rather than requiring a neptune-core intermediary. All of this will take time to build though. Don’t expect it tomorrow.