I recommend Sun Chips

Veggie Straws are a good option. You could dip them in vinegar to get the taste. Just not for long to make sure they're still crunchy.

Trail mix!

I'm on weight watchers and I deal with the same issue! I really like skinny pop because it has that crunch and can have that flavor without being horrible. And actually a serving is half the bag so I don't feel awful if I overdo it a bit.

I love to munch on salt and vinegar flavored pistachios

Microwavable pork crackling in Australia is pretty decent and is my go to... Otherwise some sort of cracker bread with low cal butter and Vegemite or a meaty paste also helps

I so hear you. I go foraging late at night for salty snacks. My sleep cycle is completely f$#_&_. I am up till 2 -3 am most days just doom scrolling and then I start feeling peckish and go rummage in the draws. Sorry I don't have any helpful comments. Just wanted to put it out there that I am on this boat as well. ☺️

I like Harvest Snaps baked pea crisps. The cracked pepper one is my favorite, but the plain salt one, the ceasar one, and the lentil basil are also good. They have the crunch I'm looking for, almost like a Funyun, but they're made of peas, so they're actually very healthy.

My gym trainer suggested rice cakes and they helped me with the crunch issue and they come in all sorts of falvors