There's a chance of earning on the forum as you said but don't make that your priority to join this forum otherwise you won't the required result.
Just like every organization has certain rules and regulations, I will advise you first to focus on the forum rules which are already provided here.
Since you have a service you provide, I suggest you create a marketable ANN thread for it and post it here.
The next thing is improving your crypto learn which will help you get the needed merit to rank up and I believe the average Joe teaching thread will be good for a start.