-TJ Dillashaw. Great wrestling, great BJJ, great striking, good clinch game and amazing cardio. Issues are with his defense and sometimes with his game planning(rarely though).
-Volkanovski is someone who comes pretty close IMO. Great cardio, striking, feints, wrestling and some good defense. Even with his height disadvantage at featheweight, he's able to close the gap with his feints and mixes his wrestling in extremely well.
Oh shit my dumbass just saw the "WW, MW and higher weightclass fighter that have the same skillset as Yan does?"
I'll just keep what's above and continue with a list with those weight divisions.
-Robert Whittaker is pretty well-rounded, probably one of the most in the UFC. That being said, he has holes in his striking that can be countered. Yan has some holes too, but he's much better at overcoming and countering them(Ex: Sandhagen fight).
-Shavkat Rakhmonov. I know he's only had 2 fights so he's still pretty unknown against elite, but so far he's looking very legit. Great distance striking, wrestling, pace and submissions. The guy is only 27 years old and is 14-0.
-Usman. Now his striking is decent and he has a lot power, what makes it so effective is his wrestling threat. He's not as well-rounded as Yan, but he's amazing at mixing up his tools to get the win over an opponent. Not the most well-rounded though.
-Ankalaev. Great striking, great wrestling and very strong in the clinch. Biggest thing that holds him back is his fight IQ.
So far I only put active fighters, if you want overall accross all eras, this list would be endless.
Idk much else and I would put someone like Jones, but he's not active anymore. There's some more unranked prospects you could put up here, it's just a lot of them are unproven.