I was alerted to a new(ish?) feature within Google Scholar earlier this week by this blog post: What does this new Google Scholar “Public Access” feature mean for me or my work? More information on the Google Scholar site itself: https://scholar.google.com/intl/en/scholar/citations.html?1#publicaccess.
From that original post:
The new Google Scholar feature is a reminder that it is all too easy to forget about open access responsibilities when you’ve already got your sights set on the next project. But researchers should keep in mind that making work open does more than just comply with funder policies — when research is more accessible to a broader audience, it has the best chance for the biggest impact. The more people who can read it, the more people who can use it, implement it, draw on it, build on it, and cite it.
Here's the page at the University of Calgary that discusses many options for hosting publications in order to comply with Open Access mandates.