Newly diagnosed T1 - diet ideas (UK)

Firstly this subreddit has been so helpful in eleviating some of my fears about being T1 (i was diagnosed 2 weeks ago after being admitted with DKA).

I'm starting to think about meal planning now and wanted to know what people prefer, carb counting or low carb diets such as Keto.

Also, i've rediscovered snack a jacks as a snack, anything else crisp like that you'd recommend?