As a Fimir collector, your choices for something official are slim. Forgeworld sell a pack of 3 warriors for £31. That’s it.
If you skim through eBay, you’ll see the classic Bibby models go for no less than £20 each. Rare collectibles, slowly losing quality, but rising in value.
Beyond this, you have to look at proxies, conversions or alternative models. Fortunately, there are a few gems out there. One, perhaps the best, is Troll Outpost’s Swamp Warrior. It’s a great sculpt and it’s cheaper than Forgeworld.