Theres 3 good teams with SSG Vegeta.
Movie team with SSG vegeta/purple broly and blue cooler or red broly. It depends on what buffers you have aviable. We only see a few of your characters right now.
Sayjan Team with SSG Goku/SSG Vegeta and purple broly. + a bunch of sayjan bench buffers.
And third option and by far my favorite is: SP ssj Cabba/SSG vegeta/SP green vegeta. The gist of it is that SSG vegeta covers the color weakness of Green vegeta and SSJ Cabba. Meanwhile Cabba buffs all Vegetas in battle with 40% strike damage and 25% overall damage from his green cards. It has such good synergy because both your vegetas are strike damage attackers and fully profit from the boost of cabba. And Cabba himself is quite powerful too with his quickly stacking blast damage boosts. SSG vegeta can use his cover ability to end combos and green vegeta can survive and heal himself from a rising rush. Just add a few sayjan buffers to the bench like EX radditz and some goku variants that give strike damage to sayjans and you are good to go.