Live Lingua is a website that connects teachers with students much like like iTalki and Verbling. But where it is different is in it’s free learning materials.
If you’re looking for someone to tutor you locally, using Wyzant to get started is a good option.
eply is an online platform which pairs students with private tutors, either locally in-person or remotely via Skype. It features a ranking algorithm which uses machine learning for classification and recommendation of tutors.
Verbling lets you “learn over 50 languages with 6,000+ teachers on the most advanced language learning platform in the world.”
Italki is a web platform and mobile app that allows users to “get 1-on-1 lessons from native language teachers and join a community of more than 5 million language learners.”