There's a rewrite of pass in Go[1] (because of course there is) that advertises multi user password management as a feature. It uses the same on disk format as pass, so it's compatible with all the addons and browser plugins that pass uses. It's been discussed here previously [2,3].

[1] https://www.justwatch.com/gopass/ [2] https://news.ycombinator.com/item?id=13551692 [3] https://news.ycombinator.com/item?id=15864322