A boutique travel agency wants to influence potential travelers during opinion-shaping moments when they're researching destinations. Which marketing objective should they select?

They should select consideration. The people described are actively researching destinations and forming opinions, which is the middle of the funnel: they know travel is on the cards but have not decided where or with whom. A consideration objective aims to be evaluated as an option at that moment, using formats that allow a fuller story to be told and optimising for meaningful engagement such as quality views rather than raw impressions or immediate conversions. Awareness sits earlier, where the aim is simply to be known, and action later, where a booking or enquiry is expected. Getting this stage right matters commercially: pushing a hard conversion message to someone still choosing a destination usually underperforms, whereas inspiring content at the research stage is what puts a brand on the shortlist.