Beef jerky is good some might have too much sodium so look for ones that don’t. Too much salt = high blood pressure + water retention.
I don’t know if you snack on pistachios those are good. Also try this
Get WHOLE wheat pita, cut into triangles. Brush them lightly with olive oil and bake at 350 degrees until crisp. Its a good and healthy (because of the pita being whole wheat and brushing it with olive oil) sub for chips.