Here are some communications tips and tools to reduce harm and to stop centering white supremacy (you need to do actual work behind the scenes though, btw)
English, Spanish, French, Dutch, Portuguese (and more) are colonial languages. They were used as tools to subjugate peoples and erase Indigenous languages.
Ask members of a certain group if you're not sure how to express something because there isn't a one size fits all approach in communications.
Capitalize B in "Black."
Say "Black people" not "Bl*cks."
Capitalize I in "Indigenous."
Don't say people of colour when you mean Black people.
Don't use possessive adjectives when talking about communities ie don't say Canada's Indigenous people
Use "peoples" when you're talking about different groups of people who make up the identity as opposed to using people to speak on general. "Peoples" suggests that they don't belong to one identity.
It is best to name the Nation or group where people are from more specifically.
Use "them" if you're unsure of their pronoun but use the pronoun(s) provided to you when you know.
If you're going to use images of people from different backgrounds don't just use images of IBPOC when experiencing pain.
When talking about "Asians," consider if you're talking about specific types of Asians, such as East Asians, or Southeast Asians, or better yet, name them specifically ie "Filipinx/a/o people" or specifically if you're talking about an Indigenous group, "Lumad people"
When using images of people from different backgrounds, pay the models as you would for a job. Don't ever rely on free labour to appear "diverse."
If you're going to use images of people from different backgrounds and needs and body types and genders and abilities, ensure that you're actually serving their needs carefully and genuinely.
Don't just cast people closest to Eurocentric standards of beauty. So, don't just choose the lightest skinned, skinniest, straight haired, able-bodied, gender-conforming people from a certain community.
Don't always assume that everyone identifies as "Canadians."
Nationalities and geographical indicators are told from colonizers' lens. Find the local names.
Don't use gendered language assuming that people belong to a certain gender. Avoid using "guys" or "ladies" unless you know for sure that people in an image identify as those terms.
Try to use people-centred descriptors, including "persons with disabilities" unless a group has told you otherwise. Many people prefer "disabled people." You should check in directly with people who belong in a group, and do your research.
Avoid using canes with hunched backs to illustrate older people.
Ensure that people who use wheelchairs are illustrated in an active position.
Make sure there's enough contrast in your images so they're not hard for people to read, including people with vision challenges.
Avoid coded language such as "ethnic" or "foreign" as these are based from white, Eurocentric lens. "Ethnic" to whom exactly?
Include alternative text in your images so people with screen readers can read them.
There are obviously more, and these are some of my learnings from various community members that have been iterated over the years, and even as recently as this year.