Crankset for 73mm frame/Alternatives to SRAM Road Wide Crankset

[Ogie]

Looking for some help - I'm new to MTB/Gravel stuff so less familiar than in the road space.

I'm looking at a frame that has a 73mm Bottom Bracket and when I search the internet I think I'm see that this is a "MTB" sizing and that MTB cranks should work.

I'm well aware of the various options in the road space so not sure if I'm just not searching the right terms - and I know that the descriptions on Aliexpress can be light.

I've seen this that I'm guessing might work but no idea if 91.5-94.5mm is the correct dimension here.  Also seen what looks like the same cranks with different Q-factors so not clear if that is a typo or an actual difference in the arm shape (or something else)?

https://www.aliexpress.com/item/1005007392822975.html?spm=a2g0o.productlist.main.17.2d51pApHpApH9w&algo_pvid=92658a9a-059c-41ae-b62e-afd9bee49356&algo_exp_id=92658a9a-059c-41ae-b62e-afd9bee49356-8&pdp_npi=4%40dis%21GBP%21210.77%2193.10%21%21%211917.84%21847.18%21%40211b6c1717277825063711681e3320%2112000040561971882%21sea%21UK%210%21ABX&curPageLogUid=mrNWfQ3ksecL&utparam-url=scene%3Asearch%7Cquery_from%3A

Can anyone help with the above or point me to some resources so I can help myself?

[00Garza]

What frame are you building up?

[Ogie]

It is a Lauf Seigla.

Yes, I know there is a SRAM specific crankset for that which may be where I go, but I'm looking to understand what alternatives are out there.

Maybe the better question would have been - what alternatives are there for the SRAM DUB Wide Road crankset are out there?

[00Garza]

Most gravel or road cranks come advertised as 68/73. They'll have spacers to fit 73mm shell.