The WBO has always been kind to NZ fighters. As you can see, Fa is WBO #6. I'd target someone like Michael Hunter.
Champ: AJ
1. Oleksandr Usyk
2. Daniel Dubois
3. Joseph Parker
4. Kubrat Pulev
5. Andy Ruiz, Jr
6. Junior Fa
7. Frank Sanchez Faure
8. Michael Hunter
9. Zhilei Zhang
10. Evgeny Romanov
11. Joe Joyce
12. Fillip Hrgovic
13. Demsey McKean
14. Agit Kabayel
15. Dereck Chisora
Champ: AJ
1. Oleksandr Usyk
2. Daniel Dubois
3. Joseph Parker
4. Kubrat Pulev
5. Andy Ruiz, Jr
6. Junior Fa
7. Frank Sanchez Faure
8. Michael Hunter
9. Zhilei Zhang
10. Evgeny Romanov
11. Joe Joyce
12. Fillip Hrgovic
13. Demsey McKean
14. Agit Kabayel
15. Dereck Chisora