Is there a "central place" where I can find every token contract?

With too many networks out there such as Tron, Etherem, Binance and etc...I use to get confused when I have to add the network + the tokens to my metamask. I think there is already a token version in all of those networks for at least, the main coins such as Bitcoin, Ethereum, USDT...so let's take this example:

1 - I want to add the USDT token version into my metamaks on the BSC chain, I go to the coingecko and then I can find the contract address + a brilliant button to add it to my metamask:

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USDT

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2 - Now I want to add ETH, the BSC token version into my metamask but there is no the same option on Coingecko:

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ETH

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This is what I use to do, is there an easiest way to figure out the contract for those main coins? I know I may find this information on the coin's website, but sometimes it is not easy to find it there.