Genius.com account needed obviously. They will make an article on the finished list later.
There are already some UK albums suggested to be on the list. Pretty simple on how to vote for them if you think they should make the top 100: click on the albums below you think should make it > click the upvote arrow & add a comment in the suggestion box that you think it should make the list.
There's also The XX - I See You, Blood Orange - Freetown Sound, Blood Orange - Negro Swan, and FKA twigs - LP1. They have yet to gain an annotation though so can't really be voted on unless someone knowledgeable writes one!