I’m trying out 2 competing #karaoke services at the moment.
* http://www.muvika.com/site/fi/ (fi and en) based in Espoo, Finland
* https://sin.ga/en (en, es, fi, it, sv) served from Amazon Web Services (AWS cloud)
Both have 1 month free trial after which it starts costing.
I will update this post once I have adequately assessed both. I’m looking at catalogue, technology, titling and audio track friendliness (backup singers).
A cost free option is to just stick “artist songname karaoke” into Youtube and hope for the best. You will find many English language songs with good quality karaoke titling with this.