Sorry I don't have a recommendation for shea oil in particular but I can suggest an alternative direction for research. Native Forest is a brand that produces coconut products and markets itself at vegetarians/vegans, claiming to not use monkeys to pick the coconuts and that all labor is paid for. I haven't personally verified any of this but it could be good to look into! My thinking is that coconut oil can be used similarly to shea butter, especially if you combine it with other stuff.