The Beta for ListenBrainz has basically just just been released, so it’s a bit early to have heaps of apps/programs/scripts out for it!
However @marc2k3 has been on fire with scripts for foobar2000 and spotify, so who knows, maybe soon??
I personally scrobble everything to Last.fm and then simply hit the import button on ListenBrainz to get it all over.
I use scroblr to track my web service listens, and simple last.fm scrobbler to scrobble from my phone - which actually has listenbrainz scrobbling support already!!
Hopefully everything catches up - perhaps you could write to the author/s of userscripts or apps you use and let them know you’re in the market for one with functionality to scrobble to ListenBrainz? Apart from writing something yourself that’s probably the most helpful thing you can do.