There some sources online that could help, but I’m on mobile and I’m tired so heres a couple I could think up:

(Just a note everyones experience is different so what i write wont resinate with many other deaf people. If possible have a couple different deaf people read your story and give pointers and listen to them.)

-Avoid using the deaf character hating their deafness as a plot.

It’s way too common from hearing writers to use this. (Not that deaf people can’t hate being deaf, but using it as a plot device is usually a way of inspiration porn (where disabled people only exist to make people feel better about themselves.)

I’m tired of seeing Deaf people always hating themselves in these stories and then “accepting themselves because of hearing person.” It"s more likely we hate hearing people (because of how hearing people treat deaf people.)

-No one lip reads well enough to be a spy.

Almost every story has the character lipread perfectly or unable to lipread at all (if you have to choose, go with the character who cant lipread at all. Its more realistic.) Its hard for some people to write lipreading but dont be afraid of using random sentences.

Once I got “proper monkeys” from “papa murphys.” I got “i have math” from “I have to go o to the bathroom” It makes no sense but thats how it came out.

The longer the sentence (and depending on how the person talks) the more difficult to deciper. (Can also depend on their residual hearing-left overhearing.)

We only understabd 30% at the most of what we lipread so thats why its usually random. Let your character mess up a couple times. It takes around 3-5 tries to actually understand what they’re saying sometimes-and that is if the hearing person is decent. Usually conversations end with “forget it” or “i’ll explain later.” (Spoiler alert, they never explain later)

-Are they part of the Deaf culture?

If you dont want then to be in the deaf culture, guess what? Not every deaf person is a Deaf person. (Deaf, capital, means its connected to the culture while deaf, lower case, means low/no hearing ability.)

-Our world is not always silent.

For one, there residual hearing, which is basically “left over” hearing. Its isnt reliable and can only pick up of certain sounds (I can hear a door shutting if I’m close enough, but not the fire alarm even if I’m right under it.)

Theres also hearing devices, which in my opinion are annoying, but very helpful for getting along with the hearing world. (Deaf people have different opinions on hearing devices. Some love it some hate it )

-Not all deaf people sign.

If they were raised by hearing people its very unlikely they will know/learn sign. My family tried a couple sign when i was a baby but they stopped since i knew how to speak and they had C.I’s available.

-Fun fact, not all deaf people can use cochlear implants.

In order to be able to have a cochlear implants, you need to have a functional cochlea, which is one peice in your ear that helps you to hear. (I think theres more for requirements but i cant really rememeber)

-sign language isnt the only accomodations available.

Theres FM systems, which connects to the hearing device, and the CART system. (Those are the only two i know of for now.)

-We are loud.

Funnily enough people think being deaf means we are silent. But the thing is we cant hear the noises we’re making so more often than not we are noisy. Thats why we sometimes talk really loudly.

-Unlike what movies may show you, we do not wear our CI imidiately after surgery.

It takes at least two-three weeks before we can get the device on. In fact wearing it the first time can be painful (more like an intensee itch that you cant scratch) and sound can take some getting used to.

-random fact: boys and nonbinary people can be deaf. I see way more deaf girls than deaf boys/nonbinary peple in the media so i thought I’d hust throw this out there.

If you need me to explain anything I’d be happy to do so.

Tldr: Every deaf person experienced life a little differently so theres not really a set line of “write it this way and this way only.” Have a couple deaf people read your story and listen to their advice.