Note: some of the below links are affiliate links, however, they're products I personally use or believe will be of help to you and cost you absolutely no more. I make a small commission on some of the products if you purchase through the below link.
Dehydrating Resources
Nesco Square Dehydrator
This is the dehydrator I have and a great entry point as far as cost goes. You can purchase additional trays for it here.
Silicone Mats
These are the silicone mats I use for fruit leather, sticky foods, and or small items.
Vacuum Sealer
Use for dehydrated foods (I use our for freezing foods too). This is the exact model we use.
The Veggie Spiralizer
I've had this for over 3 years and adore it for making vegetable noodles or curly fries.
