https://vivaldi.com
Ok I am a long time Opera user, but haven't been happy with the browser since they dumped version 12 and went to a chrome based clone that ditched all the functionality that made Opera Opera. Anyway the chappie that created Opera has started a new browser (its only a technical preview at the mo) called Vivaldi and i have to admit after a quick play that if (and thats definitely a good sized if ) if they actually get all the features they want in there it would be more like the good old Opera. and yes Vivaldi is based upon Chrome, but it has the Operaness that the chrome based operas lack.
and yes i have tried various other browsers, but have stuck with Opera in the hopes it will go back to being the opera that i liked if you know what i mean.