Kevin, the TruGlo is excellent quality for the money : budsgunshop.com/product_info.php/products_id/76942/truglo+tg8380b+red+dot+tru-brite+rifle%2fshotgun+black

The Holosun 510C is the perfect optic for a shotgun.
It has a 65moa ring for cqb that is perfect for home defense distances and super fast target aquasition, then has a 2moa dot in the middle for more precision shooting.
It also has 50,000 hours battery life and a solar back up, as well as shake awake, and it is builtike a tank.
glockstore.com/Holosun-510C
Its about middle of the road price wise but what your getting is well worth it over some budget options.
If your budgets higher and you want the very best go with an eotech,
budsgunshop.com/search.php/q/Eotech/sort/relevance /> if the holosun is more then you can spend right now go with a busnell
bushnell.com/red-dots/ar-optics/ar-optics-trs-25-hirise-red-dot-sight/BU-AR731306.html
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Or a sig romeo5
https://osagecountyguns.com/sig-sauer-romeo5-sor52001.html