Well, it's possible that such a fanfiction exists, but it might be quite rare. Shino Aburame is from the Naruto universe and combining him with Harry Potter in a fanfiction is an unusual concept. You could try searching on dedicated fanfiction search engines. Maybe some smaller, niche fanfiction communities might have something like this, but it's not a common combination that I've come across.
I'm not sure if there is such a specific fanfiction. Fanfiction can be found on various platforms like FanFiction.net or Archive of Our Own. But you'd have to search specifically for 'Harry Potter is Shino Aburame' to see if any exists.
I've not encountered this exact 'Harry Potter is Shino Aburame' fanfiction. However, the world of fanfiction is vast. If it does exist, it might be buried deep within the countless stories on fanfiction platforms. You should start by using advanced search options on the big platforms. Try to use relevant tags like 'Harry Potter', 'Shino Aburame', and 'crossover' to narrow down your search. It could also be that it's a very new or very old and forgotten fanfiction.
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