I tried chatting on some of the recommended apps on Reddit and I can confirm that none of them work.
Which bring me to the following question: How do you find people who are interested in long-term relationships online?
Note: Please don’t suggest looking in the real life.
This isn’t so easy although it does happen. Most people aren’t meant to be in your life long-term IMHO and this typically isn’t the expectation that others will have when talking to randoms online. I met my wife on a porn site, although I wouldn’t recommend attempting to execute such a strategy for example. I recommend online activities that encourage interacting with a small group ofpeople on a consistent basis, such as a DND group, rolepaying, or perhaps writing short stories where you get the chance to know each other better while enjoying an activity that already makes you happy if you can find one.