Need three keepers, help!

My league is only allowing three keepers this year, who should I keep:
Michael Thomas
Keenan Allen
Zeke Elliott
Leveon Bell
Damien Williams
Marlon Mack
Zach Ertz
Sony Michel
Mike Williams

Thanks

Not knowing scoring and assuming no penalties to keep and Zeke plays week 1

Michael Thomas
Lev belll
Zeke