If I eat enough protien then I don’t need to snack, so maybe take a look at that first off. 2lbs a week is pretty tough going by the way (harking back to my days when I was obsessed with slimming and won slimmer of the year on Myfitness). It’ll be sustainable for a few weeks or so but you’ll soon find it slows down to 1lb or 1.5 so don’t lose heart when that starts to happen. Basically you have to have a calorie deficit of 3,500 per pound you want to lose.
But anyway, when I do snack its on exercise days so I can afford to have something a bit heartier. I tend to have a Nakd bar or peanut trek bar (I divide it into thirds and have a third per snack). Also I really love Finn crisp breads - 2 of those with a bit of hummous. Also something like an oat milk chai does a lot to fill me up between meals too.