A list of Socionists that offer remote typing services. If there's a Socionist that I missed or I'm not aware of, please let me know and I'll add them here.

Victor Gulenko - 120 USD
Remote method: Send in two video recordings with each video answering a set of questions, and you are given a personalized written diagnostic.

WSS - Varies Depending on Service, usually 50 or 130 GBP.
Remote method: Most of his services require one on one video interviews.

Timur Protskiy - 70 USD
Remote method: Record an hour long video answering a set of their questions.

Ibrahim Tencer - 45 USD
Remote method: Record a 45-60 minute long video answering his questionnaire and send it to him. He has other services as well linked on his page.

Olga Tangemann - 20 GBP
Remote method: She goes into her method here.