2ETH, Staking?

So I have roughly 2 ETH, and it is just sitting there. I am thinking of staking it. Although my platform (Kraken) states that it is irreversible and there is no time frame and may never happen? That's a bit of a scary one to give away a decent asset for the chance of never getting it back. Also it seems that if you do get it back they take 15% of rewards, isn't that excessive?

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Are there any better alternatives? I've looked at moving ETH to another place but the fee's are ridiculous. Thanks.

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P.S – I am not replying to any Crypto/Investment DM's, last time I got over 30 DM's about various scams.