Fitness app

I’m looking for a fitness app that works with Garmin. Specifically an AI personal trainer to create workouts. I tried a trial of one that was called body by science ( or something like that) and I liked it, but it would sync my watch data to it. I could have typed in my sleep, workouts, all that stuff, sure. But I’m looking for one that Garmin syncs with ( like it does with MFPal). I have found a bunch that sync with apple health btw, but I would not buy an Apple Watch just for an app