Can’t decide which between hysa or sgov?

I had my emergency fund plus some in a discover hysa and about a year ago I had 6k stolen out of it, it was returned like a month later once they investigated but it still makes me extremely cautious about putting money in different places.

Now that discover has converted to capital one I didn't want to take a chance on anything messing up so I put it in my credit union that doesn't pay anything.

Now I'm wondering if I should bother with another hysa or use sgov or the others that pay like 4% to 5% (can't remember the name of them).

And if that is better then I also don't know if I should use fidelity or Robinhood. I have some stocks on Robinhood and also they're 3% card (I have the 5 dollar Month sub) and I use it for almost everything. But I just don't know if I should put a decent chunk of change on there for saving.

Any ideas would be appreciated, I know any route I go is probably fine but I'd just like some reassurance. Thanks