Best way to test new snack packaging without a huge budget?

Online survey is totally the right call for this — I'd go with a monadic or sequential monadic design so respondents evaluate each concept fairly. Tools like Wynter, Pollfish, or even a well-targeted SurveyMonkey Audience panel can get you 200-300 responses within your timeline for under $1,500. If budget allows, throw in a quick 5-person UserTesting session for richer qualitative context on the top concept.