Intimacy and SCI

Hi everyone. First of all, I apologize if this isn’t the right subreddit to post this and if anyone can respectfully direct me to where I need to go I’ll appreciate it.

I recently started dating a man with SCI. I have never had an experience like this before and I want to know about other’s experiences and stories to help me be a great partner when it comes to intimacy. As a cis man, my sexual gratification has always come from ejaculation, something that he isn’t able to do. He’s able to have and maintain erections. How do I ensure that he reaches climax and that he is satisfied?

Again, apologies if this is out of line for this subreddit but any help will be appreciated!