I don't know if Id say any are better than Senka Akatsuki yet, but I adore some of these NOAH rookies, Daiki Odashima is the one who's already leveled up but Midori Takahashi and Hiroto Tsuruya are really good and I wanna look further into them. Depending on if you can stomach NXT there's Oba Femi & Kendal Grey. Grey is a bit too spotfesty and "lemme figure out my next move" for me to put her that close to Akatsuki but she is really damn good as far as current americans go. Oba Femi definitely might be a bit of bias for me cause he's one of the guys who I first got into when I got into wrestling in late 2024, but his rookie year saw him putting on constant 7/10s or above with many different wrestlers of extremely varying skill and experience levels, and carried the program with a great title run out the gate. Once again though, heavily dependent on tolerance for modern WWE/NXT. Finally, I really fuck with Shinno from Marigold who had a great debut match, just constantly fighting and screaming bloody murder and hanging on like every moment of the match is her last chance.
So overall, no current rookies beat Senka unless you have a preference for Seri, Selene Misora maybe keeps putting out bangers and I look into her more, or maybe I find some whenever I finally get into AWG.
I haven't really looked into the rookie years of most of my favorite wrestlers tbh. How was Nakanishi in her debut year? Ive seen her be incredible really young.