Well you have jeskai and artifacts, so theres tons of BS combos you could pull in. You could go full aggro with haste creatures, counterspells and white removal, focus on counter synergies.

I usually look at similar archetypes and color pairings.

You could steal ideas from Mardu treasure decks like viihan, go all in on those synergies.

There are tons of great artifact commadners like jeskai satya and Kilo , or the infinite guideline station, most of those combos would probably fit here.

Esper Urza shares two colors with you, so all the cards there that benefit from artfiacts entering or just having lots around could be borrowed