Reddit is a very fickle community. If you want to see success on Reddit, you can't go in asking questions like this. You need to spend time in the subreddits and engage with the community. Eventually, you might be able to drop a link and get some traffic. However, if you're planning to just self-promote, you're better off going elsewhere. Redditors will see through it. At best, you'll have your post removed. At worst, you'll end up with people clicking and killing your watch time. They might also leave a lot of dislikes, etc.