I bake cookies two or three times a month and usually share them with family, I've found out a few different things when making them.
The absolute most basic thing is to use a fucking scale. Seriously, measure by grams, it's incredibly easy to use too much flour.
Other than that basic tip, the other most important being excess chocolate chips/chunks is NO substitute for additional sugars. You'll sometimes read recipes that call for 300 grams of chocolate but only 200, 250 overall of sugar, AVOID THESE. While they still turn out good, I've found the amount of chocolate makes them cloying to eat, the chocolate coats your mouth and makes it hard to swallow, and if the chocolate was particularly abundant in one of the cookie, the thing just falls apart as you take it off the sheet! The one pictured is part of a too much chocolate batch and the issues mentioned happened to them.
You'll wanna look for a recipe that has a even amount of flour to sugar, or more sugar then flour, with a middling amount of chocolate. Found cookies like this tend to be less dry and have a better mouthfeel.
Other assorted tips:
>brown sugar is acidic, it will react with baking soda, but if you don't have any, baking powder is fine too
>Raw cookies freeze fantastic, and don't have to get thawed to be baked, make your bro some cookies then freeze them, they taste better chilled too
If you do want some specific recipes, check out these two, the top one is derived from the bottom one but I've had luck making both:
https://easygayoven.com/best-ever-chocolate-chip-cookies/#recipe
https://www.thevanillabeanblog.com/pan-banging-chocolate-chip-cookies/
Don't forget the tips I gave you, be weary of excess chocolate!