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AeroPress - my coffee maker for the last 15 years
(www.youtube.com)
For practical, durable and quality made products that are made to last.
Any kind of burr mill grinder in your price range is recommended. For my first couple years of use I would daily a hand crank burr grinder I ordered from Amazon around $30 usd.
I got this Rhino hand grinder that works great. Bonus 'feature' is the crank fits onto a hex shaft that also fits my cordless drill when I'm feeling lazy :)