Tokens for Investing in Real Assets

I'm struggling to come across any tokens for real world investments, like one that tracks the S&P 500. I've noticed there's the SPYon token which appears to be linked 1:1 to the S&P 500. Has anyone here actually used these kinds of tokens? I'd love to hear your experiences!

This is tokenized on ONDO blockchain, but I check its price, it is $649 but SP500 price is $6575. How is that possible? Assuming you want to trade it, I would have suggested the SP500 index on MEXC. I have always noticed that the price of an asset and its tokenized price on ONDO are not the same but if you see the asset moving in the same direction, maybe you can go for it but I can not do that There was the one for silver which is SLVON or so, the price is also not similar to silver price but there is like $10 difference. I only trade them and I prefer XAG for silver.