Hey, @Hayek what LightCarbon wheels did you get? I'm thinking about their trail model, but 26mm internal width is a bit narrow for my liking. Anyone running HongFu FM138? What wheels do you have on yours?
I had LightCarbon build the "MC932GP-XC" rims with DT hubs. Those are 27mm ID, which is in line with what I like for an XC bike, but I was also aiming for a sub-1200 gram wheelset and that was the way to get there. They're absolutely awesome wheels.
But yes, if you want wider ID, maybe check out Elite. I have two of their wheelsets (Pro33 XC and gravel) and the build quality is really impressive. Their Pro36 wheelset has a 30mm ID, and aren't overly heavy.