I own and LOVE all the items above to I can personally vouch that they'd make WONDERFUL gifts :)
Amazon Echo- My entire family uses this, we keep it in the kitchen. We all love it !!
Portable charger- A must have especially for travel!!
Vitamix- I use mine everyday to make a breakfast juice and my kids make smoothies and shakes. Great for soup too!
Bose Speaker- I keep this in my room and take it when I travel. Had it for years and still use it all the time. You can sink it with your Amazon Echo too!
Nespresso- I love this machine. It makes amazing high quality coffee, the pods are recyclable, and it is great for us single people that don't need a full pot!