What 2-Factor Authentication are you using?

Anyone using 2-FA for your WP login of your store? If so, what plugins do you use? Popular seems to be the Wordfence, but I am on shared hosting and I heard that plugin is a little bit heavy and slows down your site. I am wondering any lite plugin that simply protect login. One plugin I found is 2-FA Pugin from miniOrange. Any one famliar with it? Thanks