What are your favorites from the category "boring, but a potential S&P 500 outperformer"?

I'm talking about very simple ("boring") business models, but which you believe will beat the S&P 500 in terms of performance in the long term.

My top 3 would be:

Walmart ($WMT (+0.92%) )

Costco ($COST (-0.01%) )

Sherwin-Williams ($SHW (+0.98%) )

I'm looking forward to your takes!