I love looking at new companies. There are a few popular sites where you can do this, AAAAND also sort the results to show all female-founded companies!
You can also filter for eco-friendly, or categories such as tech or wellness, all stacked.
The next is IFundWomen which is all female entrepreneurs only. https://ifundwomen.com/projects
Tagging isn't a new concept. The sites that do a better job at it are usually my favorite because of the increased efficiency they provide.
Kickstarter and Indiegogo, popular sites, do not yet have this filter option. I am hoping they get on this trend soon. Until they do, I'll probably stick with Republic or IFW.