If you'd consider an (inexpensive) paid option, https://www.ckbk.com/ takes an interesting approach. They partner with publishers to put cookbooks online. Fairly powerful search/filters, and the focus on cookbook content is a good proxy for recipe quality.
I'm not affiliated with them, but Matt (cofounder) has a background in scientific publishing and is passionate about recipe sharing.
I'm not affiliated with them, but Matt (cofounder) has a background in scientific publishing and is passionate about recipe sharing.