Visit our Markets page from Liquid, https://app.liquid.com/market, to see all supported trading pairs on the platform. Use "Type to search" for quick navigation.
If the pair you're looking for isn't on the list, it's not yet supported by Liquid. Drop us a message about it and we'll see if we can add it to our products.
You may also refer here to if you are interested to list your token on Liquid.