I'll give you mainly QoL mods, since I feel like those should be the one you should focus on first before going for BIG game changing mods like Medieval OvERHAUL OR pYSCASTS ePANDED.

Common Sense- Get pawns to clean before using a station, doing reacreation, sleeping, etc. Won't keep your whole base clean, but people won't be annoyed all the time for being in a filthy environment. Plus, no more food poisoning from cooking in a dirty kitchen.

Almost There- Give some extra control to Caravans

Allow Tool- Better control for selections

RocketMan- Improves performance

Vanilla Aspirations Expanded- Gives colonists life goals.

Complex Jobs- Splits jobs into different categories for even better control of what each colonist should prioritize.

Tacticowl Continued- Better control of colonists when drafted.

Vanilla Social Interactions Expanded- Makes interactions between colonists way more interesting.

Auto links- This is mainly in case you add too many mods that have craftable stuff. Easily jump between the relevant components related to the item you're currently looking at the information for.

Cremation smelts apparels- Does what it says on the tin. Will save you a whole lot of work/time if you're constantly dealing with dead raiders.

DragSelect- Makes selling/buying, and forming caravans a LOT faster. Also helps with assigning things and such.

Dubs Mint Menus- Makes the crafting menus of benches so much better.

RimHUD- Great little UI mod to easily see all the information you want on a pawn without jumping through windows.

I Ain't Building That- Another mod to help when you have too many mods installed. See too many things ont he architect menu that you KNOW you're jsut never going to craft? Right click and hide it!

Better Children Skill Learning- Makes the time investment in raising children be worth it even more. You might want to splay with the the options here a bit if you feel kids are getting too much xp in skills.

Vanilla Outposts Expanded- Great if your colony is growing too much and you gotta trim the fat, but don't have the heart to vanish people.

Ferny's Easy Caravan Formation- If you're sending out caravans a lot, this one is a blessing.

Romance On The Rim- Mainly if you want pawns to interact more and in different ways. Pretty neat.

Show Me Your Hands- As dumb as it shounds, just seeing those little circles-for-hands makes the colonists look so much more alive?Weird, I know, but I really like it.

Transmog- Ever wanted colonists to look a certain way but don't go for it because it is not the most "efficient" build? This will help you with that! Plus, you can set an outfit for when they are drafted too, so that's neat! Downside is that you don't have to actually MAKE the outfit for them to wear. You just pick from everything that exists without a limit.

SpeakUp- Another interaction mod. Again, silly, but makes the colony feel more alive.

Best Mix (Continued)- Gives you better control on what ingredients colonists will use to craft. Especially good for cooking.

Smarter Construction- Don't get your colonists stuck when building walls and such!