So you know of my good online communities dedicated to fitness from a haes/anti-fatphobic perspective?
I s2g you’re the only “““haes””” blog I’ve found that’s both active and not actually fatphobic
Unfortunately this isn't something I have first hand experience with but if you go here https://haescommunity.com/search/ click fitness trainers and enter your location or nearby big city and see if anything pops up. You can check of they have online options or other free resources. Without specifying location you'll have a very long list so it all depends on how much time you want to sink into it.
https://alissarumsey.com/fitness/body-positive-fitness/ this person has listed some links and is a great jumping off point. They list their Facebook group that should be what you want but it's Facebook.
If our followers know any more I encourage them to add on!