So, "<body part> orgasm" isn't ever actually a thing because all orgasms happen primarily in the central nervous system and brain. People use that language casually, but I feel like it can be really misleading and confuse more than educate.
By all means, how we can experience and get to orgasm is often about kinds of physical stimulation to various sites of our body, but rarely only about just one site (even when you're masturbating with a penis and a hand, for instance, your penis, your hand, everything around both and all the nerve endings of both and your brain are involved, and if you're looking at anything, your eyes, if you're smelling anything...you get the picture). Get what I mean?
That said, do some people enjoy prostate (the "p" in that term) stimulation and find that it enhances orgasm for them? Yep. Is that real? Yep. Like literally anything else, will it result in pleasure or orgasm for everyone? Nope. If this isn't something that's super-great for you or resulting in orgasm for you that doesn't mean it isn't real for others nor that you're doing it wrong. It just might not be your thing, might not be your thing now, or might not be your thing the way you're doing it so far. It could be you need to combine it with something else, do it differently (like with a different toy or technique), etc. Does that all fill you in?
In terms of looking to expand your masturbation, I always like to remind people to consider the whole spectrum of ways we can expand like this: it can be physical, for sure, like by doing a new activity, or getting a toy, a new lube, or adding a new sensation through temperature, for example.
But that's not all. We can also change our physical environment. We can try a different emotional environment, too. We can change up our fantasies, and if we use any kind of sexual media, we can try something new in that department, whether that's changing the kind of media, like switching from visual media to audio or the written word, or we can change the genre of media. If we only use media, we can try instead shifting away from it and giving our imagination a chance.
Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. - Margaret Mead