The most accurate approach to learning about Indigenous peoples' experiences with European trade, in the absence of primary sources from their perspectives, is to read European sources critically or look for material objects that might give some insights into Indigenous peoples’ experiences.
By critically analyzing European accounts, we can identify biases, stereotypes, and assumptions that may distort the Indigenous experience. Additionally, material culture such as trade goods, tools, and art can provide valuable insights into Indigenous perspectives and adaptations resulting from European trade interactions. Archaeological evidence and ethnohistorical studies can also contribute to a more nuanced understanding of these experiences.
Creating documents based on guesses or accepting European accounts without analysis would not provide a reliable understanding of Indigenous perspectives.