The more affordable Pixel smartphones will likely become widely available later this month when Google I/O 2019 will have concluded. If rumors are true, then we can expect the Pixel 3a to start at just $399 with the same revered camera as on the Pixel 3.
https://www.notebookcheck.net/T-Mobile-is-purportedly-stocking-up-on-Pixel-3a-and-Pixel-3a-XL-smartphones.420207.0.html