There are a whole range of scenarios that may be played out available on the internet. One of the better reviews, in my opinion, is this one.
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The Devastating Consequences of a War Over Taiwan
It is a longish read but it looks at a whole range of possibilities and is less jingoistic than many.
A review of the possible outcome of a blockade of Taiwan by the The Maritime Executive suggests China may suffer as a result, but it would not be a POL issue but rather the effect of the loss of imports from Taiwan.
Why a Blockade of Taiwan Would be Disastrous for China
Of course the problem with many analyses is they are written from a Western perspective and assume the Chinese think in a similar way to the analysts. This may be naive. As Russia and the Ukraine have shown, some states think very differently and the extent to which Taiwan is seen as unfinished business and their willingness to take losses in pursuit of Taiwan may have been underestimated.