ref – https://www.grammarly.com/blog/to-vs-for/

to and for are prepositions

to is used with verbs

for is used with nouns

Direction

We’re going to the zoo this weekend
Look to the left and right when crossing the street
I’m going to school

Showing who or what receives an action or item

I passed the ball to my brother at the last second
We want to invite Karen because she has always been nice to us

Showing an abstract link between two people

I am married to my best friend.
This is Dwight, assistant to the regional manager.

Showing a physical attachment between two things

The piece of paper was accidentally glued to my hand.
I chained my bike to a bench, but the bench was stolen.

Comparison

High school is easy compared to college.
They preferred water to soda.

Reason (with verb)

Describing why something happened, when the explanation uses a verb

He shouldn’t have joined the army to impress people.
I study so much to get good grades.

Synonym of “until” – To is often used colloquially as a replacement for “until.”

We’re open from dawn to dusk
I’m with you to the end of the line, Bucky

Infinitive Verbs

to can indicate the infinitive form of verbs.

I want to be (verb) an astronaut.
To succeed (verb) in anything requires motivation.

When to use for

Support

Indicating agreement, allegiance, or favor toward something

I’m for peace and justice!
If you’re not for the Democrats, you’re against it.

Representation

Showing an action on behalf of or representing something else

I speak for everyone when I say that we’re happy you’re here.
I may work for Walmart, but I don’t shop there.
I work for an educational institute in Futian

Exchange

Introducing the second part of a purchase, deal, or trade

I’ll trade you my pizza for your hamburger
He bought the entire Mario Kart collection for only one hundred RMB!

Length

Indicating length of time or distance

She worked there for four years and the boss never learned her name.
Go straight for a few miles and then turn left.

Gratitude

Showing thanks or gratitude

Thank you for your email.
It isn’t much, but I’m grateful for what I have.

Reason (with noun)

Describing why something happened, when the explanation uses a noun

She became a doctor for the money, not the long hours.
We have to practice extra for the tournament.

For as a Conjunction as a synonym of ‘because’

Conjunction—For is a coordinating conjunction that acts as a synonym of “because,”.

Don’t go out past midnight, for it’s not safe.
The crops aren’t growing, for the weather is lousy.

Comparisons with what’s normal—You can use for to emphasize how something is different from the norm or general standard.

She’s tall for her age.
“You’re not bad for an elf,” said the dwarf.”

Word pairings that use to:

access to
addiction/addicted to
attraction/attracted to
change to
contribute to
dedicate/dedication to
new to
react/reaction to
refer/reference to
respond/response to
threat to
transition to
to some extent
to [someone’s] surprise
to [someone’s] face
to this day

Common phrasal verbs with to:

get around to
get down to
get to
look up to
see to
Word pairings that use for
advertise/advertisement for
approval for
argue/argument for
care for
cure for
hunger/hungry for
pay for
recipe for
room for
search for
study for
talent for
thirst/thirsty for
for a living
for a while
for free
for good
for now
for sale
for starters
for sure
for the best
for the record
for the time being
Common phrasal verbs with for:

go for
look for
look / watch out for