I would personally recommend, if that's your thing, to look into "clean" Android devices such as Fairphones. Once the bootloader is unlocked, it's really trivial to install a decent Android distro without spyware, like /e/OS. I used to recommend LineageOS but it seems like it phones home by default these days: /e/OS is a Lineage fork without the spyware/telemetry.
Of course the best solution if you're not afraid to get your hands dirty is to compile Replicant Android from sources, but from what i heard it can be troublesome, and it's quite possible that blobfree Android does not fit your feature/usability expectations (eg. no GPS/camera/wifi), in which case a blobbed Android without OS-level spyware may be a good compromise.