honestly you could definitely take inspiration by celebrities with imo great fashion sense back then, such as selena gomez, rihanna, zendaya, early ariana grande and more. i suggest you search up whatever is closer to your preference! also movies/series we watched as kids, for example any nickelodeon show (victorious, icarly)!! they have some ACTUAL 2010's outfits rather than the ones that r labeled as 2010's which trust me are not accurate. pinterest also would help you. outfits from celebrities r trustworthy and old photos of users!