The first thing is you will have to plan out your threat model. What are you doing? What are you wanting to do? Who is going to be bad for you? If you are an "

The first thing is you will have to plan out your threat model. What are you doing? What are you wanting to do? Who is going to be bad for you? If you are an "activist" vs a "person that just doesn't want their email scanned for ads" there are very different vendor pools.