People have been asking me who makes the stuff
Microworld Games-Probably the Best for none humans
Irregular Games-Widest Range some really obscure stuff
Baccus- Sheffield Based available from Wargames Emporium and the best for humans
Rapier Games-Greek Critters
Heroic & Ro's-Historical
Remember Historical Models can always be used as Fantasy models
A lot of 10mm stuff is also suitable for larger critters. Pendraken , Copplestone Castings and Kallistra are the main ranges. This was Warmaster scale as well but that's dead.
15mm is pushing your luck but worth considering for gribbly monsters and elementals.