I've been on the hunt for a solid white tee for months, and discovered this lovely off-white Vince tee on sale at Nordie's. The sleeves offer substantial coverage and are roomy. The v is low enough to be alluring, but not too low for those with smaller busts who don't fill out shirts. Despite the loose fit, the tee has a lovely drape.

In the past, I've tried:

Everlane--fit consistently off
J. Crew--holes formed almost immediately
EF--cotton tees too boxy, silk tees too tight for those with big upper arms
& Other Stories--liked the tee, but stained immediately and never came out. Pilled quickly.
Theory--price point too high. Plus, every Theory garment I've bought in the past year has had stitching unravel.
Victoria Secret pocket tee--this was from many years ago. Amazing fit, but too low cut for small chests.

I hope this is helpful. Feel free to share any recs that have worked for you.

ETA: Added the Find.