Unfortunately, a secure end-to-end encrypted connection is not always an option in every case. The user's ISP is, in many cases (depends much on the country), probably more trustworthy than a random Tor exit node, which anyone can run. Many exit nodes are potentially malicious, run by spying agencies such as the NSA, FBI, or other malicious organizations. Even if they don't attempt to harm the user directly (MITM), they may spy on the user and log content of the connection.
I have to use an unencrypted connection in this specific case.
I know I cannot get ideal security this way, but I am looking for some exit nodes that are at least as secure to use as a good, reputable ISP. Ideally these nodes should be hosted by a reputable organization committed to privacy and not keeping logs. What should I look for, and what country should they be located in, if I want good privacy (Switzerland?)?