Have a look here https://mtgtop8.com/format?f=PAU
I havn’t seen Goblins for a long time. Top of the meta are the Red Win decks https://mtgtop8.com/archetype?a=549&meta=145&f=PAU
Basically red has now three really good card advantage cards, namely Reckless Impulse,Wrenn’s Resolve and Experimental Synthesizer. So my first guess would be to add one of these to your deck as well.
Have a look here https://mtgtop8.com/format?f=PAU I havn’t seen Goblins for a long time. Top of the meta are the Red Win decks https://mtgtop8.com/archetype?a=549&meta=145&f=PAU Basically red has now three really good card advantage cards, namely Reckless Impulse,Wrenn’s Resolve and Experimental Synthesizer. So my first guess would be to add one of these to your deck as well.