According to one website, Manuel Margot and Logan Allen currently have surplus values of $26.2 million and $15.4 million, respectively:
https://www.baseballtradevalues.com/trade-simulator/
To date Margot has posted 4.3 fWAR, valued at $34.7 million, while Allen has posted a rounded-down 0.0 fWAR, valued at $200,000:
https://www.fangraphs.com/statss.aspx?playerid=14712&position=OF
https://www.fangraphs.com/statss.aspx?playerid=18555&position=P