Which wallet is best, how do I keep my Nano secure?

I found a list of all wallets, which one do you suggest?

The wide range of third-party wallets covers a broad spectrum of both features and styles of implementation. Most typically the playoff is level of security vs. ease of use and features.

The Nano Foundation does not specifically endorse any particular wallets, but this article outlines some important aspects to consider in making your decision.

Do keep in mind that the ecosystem is continuously changing and improving, which means new wallets may be developed and existing ones improved sooner rather than later. You may find all of the different wallets at NanoLinks