I’m buying my next optic with this intent. Right now I’m shopping either the Vortex Razor HD or the Bushnell Pro 3.5-21. Was looking at the 8-powers from Nightforce but reviews have it really finicky wrt the eyebox and noticeable edge distortion. A lot of LE guys swear by the MkV Leupolds as the sweet spot for that company.
After literally years of optic research, I feel like the Vortex Razor is the easy button. Great intersection of pricing and performance. With the PST line/ Bushnell DMRII as a budget option depending on weather you want durability or features as the deciding factor between the two.