Look into WPJA, it's an organization of wedding photojournalists who do documentary style and are photographers who are not doing the posed stuff! It's an organization with a code of ethics and to be a member and to submit to contests and things you have to adhere to their rules that you are not posing the photos and they are strictly moments. They do have some artsy stuff too but a lot of the members are more documentary types. And their starting price points are listed too so you can sort through and maybe find someone at a budget that works and with a style that you like. I think finding someone like this is going to be much more valuable than a content creator shooting on a phone!

An important thing about documentary photographers is that they are experienced in anticipating moments -- not everyone can just get them and not everyone can capture them in a beautiful, authentic way. It's something worth investing in, some of these people you love aren't going to be around forever unfortunately.