I went through the modpacks Stoneblock 3 and Engineer's Life 3 and picked out my favorite mods to play with my friends without having too much complexity. I have constructed this modpack with a range of different mods from exploration mods to techy mods like Create. I like tech mods, but don't like when there is too much going on or when the content is too complicated. This modpack creates a good variety for players like me that like tech mods but also like the exploration elements...without a 300 mod long pack.
This pack has 81 mods so it isn't too large and can most likely be run by the average computer. Most of these are techy mods like Create (with a couple of extra add-ons), immersive engineering, immersive petroleum, industrial foregoing, etc... Although, I have added mods like Biomes O' Plenty, better villages, MCA reborn, and Alex's Mobs to give a good variety of things to do.
There are also a variety of UI and quality of life improvements like dark themes, just enough items, durability tool tips, etc...
Along with these, there are some silly mods like clay soldiers and grappling hooks for some extra fun bits.
All around I tried to make this mod as simple...but complicated as possible while staying around 80 mods and I think it has a good variety for gamers like me that can never decide on one particular pack.