There are many different ways to store your Bitcoin but at a fundamental level it comes down to three options:
How to store Bitcoin securely by yourself
Keeping a digital secret, while still having access to it, is surprisingly hard.
Unchained Capital is a shared-custody provider based in the US.
Casa is a shared-custody provider based in the US.
How to make sure that your Bitcoins reach your heirs
The goal of an inheritance plan is to ensure that your heirs will be able to access your digital assets at the appropriate time, but not before.
General advice on online security
This online tool is a great way to see how secure you are when it comes to your digital life. When dealing with Bitcoins making sure that you are not getting hacked or leak information is especially important.