Would recomend you take a look at fulcro. Its an om-next fork. Really nicely documented & actively maintained. http://fulcro.fulcrologic.com/docs.html
@norbertpy om was kinda dropped in favor of om-next. Om-next is different so you will not get any benefits from learning om. And not much going on these days in om-next as far as I can tell. Re-frame is the most popular & fulcro has pretty active community so might be a better choices when getting started
@claudiu Thank you. fulcro
and re-frame
both look good.
@norbertpy youre welcome. Re-frame should be easyier to pickup. Fulcro has a bit more of a learning curve (but the great docs & really nice video series, help a lot). Both are great choices, I went with fulcro because of the ssr, normalized db & fullstack story. In the fulcro book there is also a rest api example implementation.