I’ve been living in (sweat/tee)shirt dresses, because they don’t require (much) coordination or styling. And one of my favorites is the Lioness Military Minds Mini Dress, which is casual enough for everyday, but the ruching detail separates it from basic tank dresses. The material–a mid-weight 89% viscose/11% nylon knit–is soft, (very) stretchy, and surprisingly substantial. The side ties allow for the length to be adjusted, so you can wear it as short (or long) as you are comfortable with. And the fit is true to size, but it’s designed to be tightly fitted.
For those looking for a more budget-friendly option (not that the original will break the bank), you might try the BTFBM Bodycon Ruched Dress with Side Drawstring. The material is much thinner compared to the Lioness option but the look is very similar.
For those in the market, here are some more dresses with side ties: