Fintech’s funding boom for the past decade has led to a flurry of new consumer startups tackling a wide range of money-related issues, from saving apps to investing platforms. Should you download Robinhood, Stash, Public, Acorns, or Truebill? The fintech craze creates confusion for consumers when it comes to figuring out which startup is the best to handle your money. That clutter has created room for Venice-based Stackin’, a curated marketplace for fintech apps that today raised $12.6 million in a Series B funding round led by Octopus Ventures. According…