An easy way to do this comparison is using the printed 2019 Ram 1500 brochure. In a quick read of the feature availability starting on page 37, here are the features I saw available on the Limited and not the Laramie:
Chrome body side moldings
Full LED Headlamps with Signature lighting (headlamps on Laramie are mid-level LED -- whatever that means)
Limited specific 22-inch wheels (22-inch wheels are available on Laramie -- just not the same ones as on Limited)
Full console with premium wrapped leather lid and bombay door (console is apparently just a little nicer on the Limited)
Rubber floormats with premium carpet inserts (only the Limited has mats with carpet inserts)
Premium leather bucket front seats (leather is apparently a little nicer on the LImited)
Leather wrapped, real wood steering wheel (Laramie wheel doesn't have real wood)
Body color bumper group (Limited only option)
Caveat is that the brochure was printed probably 8-12 months ago and might not reflect current feature availability. (For example, it lists the bed divider/extender as part of the RamBox option.)
You probably know this, but once you option out a Laramie to Limited level, you'll be close to the price of a Limited. Advantage is that there are more color options on the Laramie.