I use a Pixel with GrapheneOS.
It seems to me to be the best option currently available in terms of data security.
I keep hearing, especially from people in the US, that the authorities don't have as easy access to data as they do with other devices.
In the security-conscious community, GrapheneOS is considered the best alternative, in my opinion.
I wish you all the best on your journey to data security.
All the best! If you are interested in data protection and speak German, I recommend this website:
www.kuketz-blog.de