I like to EDC a small fixed blade. My knife requirements are less SD related and more utilitarian so I can't really speak to the former if that is the OP's aim. I don't like carrying stuff IWB because I like my pants to fit properly so I carry items on my belt (OWB) or in the case of a lot of my small fixed blades, in my pocket.
I've posted this pic a couple of times already so hopefully I don't aggravate anyone by posting it again but this is demonstrative of a good spread of small, tough fixed blade options, many of them made by some of the excellent makers that can be found on these forums.
(top to bottom)
- Tope Bulldog in 3V (not as familiar with this one, got it in a trade and haven't put it through its paces yet)
- T.M. Hunt (got it in trade so unsure of steel or model name - tough little guy though)
- Gold Knifeworks AUK3 in A2
- Carothers EDC2 in D3V
- J.J. Smith in AEB-L (just got this one and it's a new favorite)
- Lorien Arnold Mr. Kotter in AEB-L
- Siegle Knives "Puukko" in 5160
- Redmeadow Knives Cowbell in 52100
I also belt carry a more traditional puukko quite often (pictured below) and I also will carry one of CPK's DEK series knives if I want something a bit larger (also pictured below).