Since my chances of getting reelected are probably hilariously slim anyways I'd probably just see what I could do tacking hard to the left on economic issues and switching parties. Run as a hard economic populist but also as a hardcore social conservative. Vote in favor of things like a $15 minimum wage and Medicare For All while also taking a hard line on issues like abortion and gun control. May as well try something out of the box.
That's kinda what Van Drew did, he still has a pretty liberal voting record in congress after the part switch.