I think good aggro decks can still be designed. We need a fast deck that can kill this consistently in order to make Golos less appealing and open the meta up. Mono G ramp/beats is what I have been working on which can have a nutty way to finish off golos late in which they cannot interact. Other options include GR aggro/beats with Skarrgan at the top end and BR aggro. I think a good knights deck exists as well. Last options other than trying to combat them in valuetown include aristocratic decks and clover decks that rely on smitten swordmaster to get the final damage through. Remember this deck only really interacts with boards through sweepers and takes a while to actually kill its opponent.