The 2600x is a 95w cpu 6c/12t. When you shop for a cooler, yo need to figure on what can happen, not just what you think might happen. So if there's a decent chance of OC, figure on that actually happening, figure on it being decent (no real point bumping up 100MHz). Better to spend $70 once on a big cooler that'll handle anything than spend $50 on something ok then another $70 to do what you want.
So plan on a cooler that's about double that 95w or better. That's @ the 180w range. Cryorig H5, Noctua NH-D14, Scythe Mugen 5 Rev b etc.
You can't ever over cool a cpu, but it's sure easy enough to undercool one.
I get it. Everyone is on a budget and cheap is nice. But look at the difference in builds for $70 on a $1200+ pc. You move up to a far better cooler that'll handle almost anything you do with that pc, from a cooler that's a stock replacement. You move up from a mediocre ok psu with barely enough reliable wattage, to a class leading, 10 year warranty, built by arguably the best OEM there is for psu, at 650w. You move up from a mediocre performance ssd at 250Gb to an SSD that challenges the Samsungs, and is 500Gb as well. For $70. That's ½ a days pay for me. I could justify the changes considering I keep pc's for 5+ years.