There are some nice Bob Olley beastmen in the
Ral Partha Europe Chaos Imperium Range:

It's worth remembering that people will pay a fortune for Bob Olley's GW beastmen (and black orcs), but many of his equivalent figures for other companies are cheaply and readily available.
You mention a preference for goat heads over faun heads, but where do you stand on crocodile, dog and rat heads? (I've never understood why Citadel/GW went all goat after the initial glories of Trish Carden's camel-men, seahorse-men, eagle-men and slug-men - why shouldn't chaos be chaotic?).



Deeper in the same range, there are some non-Olley beastmen with slotta tabs, which might fit well with the two you posted:


Midlam Miniatures does some
great beastmen too: there are boar-men, ram-men and dragon-men (all by Bob Olley), but also some rather good fishmen:

Reaper Bones does some interesting beastmen:



And their big gnolls are nice if you want a unit filler (shown here with Frostgrave gnolls, which would fill a 25mm base perfectly well):

The Alternative Armies dogmen are essentially gnolls, but are nicely scaled as Gors (I have the older set, second below, which fill 25mm bases nicely; they're quite bulky):


Finally, the monopose Battlemasters and Warhammer beastmen are often available quite cheaply on eBay - it's worth keeping an eye out:
