His favorites are Ti frame locks with 3"+ blades, my brother doesn't like anything really tactical in look/nature and more appreciates something both attractive and highly functional.
These folders, from top to bottom: Three Sisters Forge Beast, small CRK Sebenza, (large size, bloody) Sebenza 25, Grayman DUA, Umnumzaan.
These are all nice folders, titanium, good blade-steels, quite heavy-duty without being terribly heavy at all.
You said he doesn't like tactical...forget the Umnumzaan. It is tactical in appearance and by design.
You said he likes 3"+ blades. Well, the Umnumzaan and the Sebenza 25 are both approx. 3.6" blade-length, and there is a
WORLD of difference between a 3" blade and the 3.6" blades.
Closed handle size of the Sebenza 25 and the Umnumzaan is 4.8". Closed size of the small Sebenza is about 3.9". Big difference! I cannot hang onto a small Sebenza, so I carry a large Sebenza or the Umnumzaan. But, I wear a size-Large glove.
There are at least two alternatives to consider; both of which are, IMO, excellent choices. Both folders have handles long enough, about 4.2"-4.3", for even a larger hand (like mine) and yet a smaller blade around 3", which is plenty long for most casual EDC.
The first one is the Three Sisters Forge Beast, available in a number of excellent blade-steels, including M390 (one of the best). The Three Sisters Forge Beast is a blade-length just barely less than 3", making it legal blade-length in MOST (not all) states. The blade-top does NOT have jimping. I would much prefer to have jimping.
The Grayman DUA, tip to handle, has a length of 3.15" and is normally found with a S30V blade-steel, an excellent steel found even in older "traditional" Chris Reeve knives. The DUA finger cut-out is shaped well, but is set further back than I like for comfort. Some folks use the cutout for the fore-finger; some for the middle finger. Not perfectly content with that.
With my large hands, I can easily carry ANY of the above folders,
EXCEPT for the small Sebenza. So be careful; consider the size of his hand.
All of these folders in the above photo are light enough to carry EDC comfortably. All are heavy-duty enough for daily carry, and will likely last a lifetime. Customer Service on all five pictured knives is excellent.
The Beast and the DUA are both hand-made, one at a time, by a one-man shop. Both knives are quality-built. The DUA uses the same pivot as the Sebenza, and is licensed from Chris Reeve. Both of these gentlemen are nice fellows; eager to please and will offer GREAT customer service. The prices of these two knives are approx. $300 each.
I highly recommend either one, in addition, of course, to a properly-chosen
SIZE of Sebenza.
The "Sebbie" IS THE STANDARD by which all other folders are compared, IMO. Most folks will probably agree.
Good luck on finding a knife for your brother. I've had very limited experience with Lionsteel and cannot speak to that company.
Sonnydaze