Pixel 4 is a good choice imo, it’s what I’m currently using. It has a Snapdragon 855 with 6GB RAM which is very speedy day-to-day. Face unlock which works even in pitch black. Camera is great, even compared to current generation phones. it’s end-of-life from Google but it’s still officially supported by LineageOS and gets lots of commits.
it has a 5.7" screen, though with it having minimal bezels most of that is height so it’s not a big wide phablet type thing.
if you already have alternatives in mind I’d ignore my advice, but otherwise you’ll probably find it difficult getting still supported devices with displays in the 3-4" range unfortunately, just the way the market seems to have gone with phone designs :/
i distrohopped a lot until i landed on Void, then i just stayed because it does everything i need, it’s fast, understandable, easily tweakable, and rock solid