All the different Mausers have very interesting history, The Yugo, Czech and German all have a long recorded history. The Italian rifles are often over looked but they are pretty nice rifles, ammo is a problem. The Swiss have a good history but not a lot of in theater action. The French MAS used during war2 is another good shooter. The Type 38 and 99 Arasaka are interesting, history is little thin on them.
The Lee Enfields, what can I say, other than I have over thirty now and all are different.
With my USGI stuff it adds up to 55 rifles.
So much for having a small collection.