Have you ever thought about making a Patreon
account? A lot of people get monthly income using it. Some free creators like you get $2,000 a month. For Example, Yanfly makes $2K a month making free game scripts. Also, they do not have all the fees that PayPal has.
I am sure if you ask some of the creators for help, then they might help people notice you. You are doing a free service after all.