Gerry
There are several companies to choose from .
Foundry makes a very nice Range with Heroes ( Perry Sculpts )
However dont make the common mistake of ignoring the Redoubt range of figures , they are older but fit perfectly well with Foundry and other ranges.
In addition they do a vast range of figures , that no one else does.
Eureka Miniatures also do a nice range of figures as well.
Lucid eye , do some lovely figures as do Crocodile games and Casting room figures.
Cheers