Ekeler, Jackson, or Samuels?

WDIS? Week 1 of the playoffs up against a buzzsaw of a team. 12 team PPR My team is:

Brees, Kamara, Mixon, Gio, Gordon III, Ekeler, Samuels Allen, Landry, Sutton, Reynolds Burton :( Badgedly Steelers, Lions

Best Waivers are Justin Jackson and Curtis Samuel, Ian Thomas

I’m really worried about who to flex and who to play at WR2. I also hate Trey Burton lol

Thanks in advance for any advice!