Hey hello Tony! Usually ppl would rank Asset Management Firms according to their AUM (assets under management), and you can see the rankings from these websites:

https://www.swfinstitute.org/fund-manager-rankings/asset-manager

https://www.advratings.com/top-asset-management-firms

Firms eg Blackrock, Vanguard, Fidelity Investment, Blackstone, Fidelity International, Schroders, Allianz, Invesco, PIMCO are frequently seen in Hong Kong's campus recruitment market.

Talking about career development, entering the asset management industry is much harder than getting an entrance into corporate banking, and most of the ppl may consider getting into asset management industry a more promising one.