AJ would be number one on this list but I'm not counting him because he's turning 30 later on this year.
1. Joseph Parker
2. Filip Hrgovic
3. Agit Kabayel
4. Hughie Fury
5. Efe Ajagba
6. Tom Schwarz
7. Daniel Dubois
8. Nathan Gorman
9. Otto Wallin
10. Murat Gassiev
Out of this lot I would say one of Ajagba, Dubois or Hrgovic will turn out to be the best of the bunch. Parker and Fury seem to be early bloomers.
Jefe Ajagba is leading the pack.
Honorable mentions:
Ivan Dychko
Jermaine Franklin
Darmani Rock
Tony Yoka
Peter Milas
Stephen Shaw
Oleksandr Teslenko
Bakhodir Jalolov
Vladyslav Sirenko
Mladen Miljas
Forgot about Yoka and Dychko. Dubois and Hrgovic have more potential than those two IMO.
Jefe Ajagba is leading the pack.
Honorable mentions:
Ivan Dychko
Jermaine Franklin
Darmani Rock
Tony Yoka
Peter Milas
Stephen Shaw
Oleksandr Teslenko
Bakhodir Jalolov
Vladyslav Sirenko
Mladen Miljas