1. Speaking strictly physiologically, masturbation and intercourse orgasms aren't that different in what it feels like down there. The only difference is what it feels like in your mind, but that depends on your partner and your compatibility.
2. Fleshlight Stoya edition obliterates everything that breathes in terms of orgasm power, except for one single blowjob I received from an autistic mind-reading trans boy. But he's rare.
3. If you wonder whether no-fap or no-orgasm lifestyle has benefits, it doesn't. My high score is three months without orgasm. After two weeks, you stop thinking about sex. Morning wood disappears completely. You have considerably less energy, and every time you ask yourself why, you remember: “ah, it's that no orgasm thing.” Then, it's quite hard to go back to having sex — your penis just won't go up.
4. Sucking your own dick feels weird, just like tickling yourself. It's hard to focus, and the pleasure is next to none. If you always wanted to do that, you can forget about it — it's not worth it.
5. If you're a penis person, high quality anal orgasm is THE best physiological feeling you can get without drugs. Totally blows anything penis-related out of the water, including edging and other advanced techniques. If you chase self-exploration and wonder what your mind/body are capable of, definitely try it, though you have to find an experienced partner & be patient with your body.
Pro tip: if you're a man in a traditional monogamous relationship (if so, what are you even doing with your life?…), it might be easier to convince your female partner to allow you having affairs with penis people than to go full polyamorous mode.