I see several of our Really Smart People have already responded with specifics, so I want to focus on something else: What question are you asking?

You say you want to just put your money in something and leave it there.

But then you say you want to find the "best thing for me".

I posit that "you" are a moving target, and what is "best" for "you" is going to change over time.

In addition, at some times some financial vehicles will make you more money, and some will make you less, and you could even lose money in others.

So I suggest you think deeply about the question you actually want answered.

Reading your post, I would think it goes something like this: "I got a gift of money. I do not want this gift to lose value. I want to find a way to safely, and passively, invest the money so it becomes more money."

You want to keep the gift safe. You know money can make more money, if invested. So you want to invest it in something that has a reasonable return. Something guaranteed.

Anything guaranteed is going to lock your money away and make it inaccessible for a period of time. The longer you can be without it, the more you will make on it.

So think about those factors, and what your particular "settings" are for those variables. That will help the Smart People of Hubski guide you in a direction that meets your needs.