All of these options seem … expensive.
This Bitkey solution seems accessible to most everyone at a minimum.
In regard to unchained and the like I find it hard to accept you are paying a fee and on their side it’s all care and no responsibility.
There is this which is a bit larger fee but your stack is insured thru Loyd’s. Seems like a better alternative https://www.anchorwatch.com/
Discussion
Expensive…..it’s all relative