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I’d recommend using a DEX aggregator like [https://app.1inch.io/](https://app.1inch.io/) which will look for the cheapest DEX route to swap from any token to another.
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Just keep in mind that if you want to swap anything else than the native coin of the chain (i.e. ETH on Ethereum, AVAX on Avalanche, MATIC on Polygone, etc.) then you’re first asked to **approve** the token you want to swap away from, which is a separate transaction.
Only after you approved the token can you now create the actual swap transaction.
I’m just mentioning this because many people who do this the first time think nothing happened when they swapped their token, when they really just did the approval transaction and thought that was it.^^