After spending the last two months trying different recipes and employing a variety of techniques, I think I've finally found the right sourdough baguette recipe! (userealbutter.com)
Familiar: Sourdough baguettes with cheese (cow and vegan), sliced avocado, grapes, sliced apples, vegan bacon. (stefanietsabar.com)
Sourdough Baguettes [print recipe] based on this recipe and this technique, and some futzing around (userealbutter.com)