Of those 4 lefty bats--Moreland, Devers, JBJ, and Lin--only JBJ does almost as well against lefties as righties. Moreland and Beni both have big drop offs. Lin is is hitless vs. lefties, but only 2 AB's. This year Nunez OPS vs. lefties is .347 (8 AB's), which is about the same as Beni's.
So, me, I probably stay with the standard--Betts, Beni, HanRAm, JD, Devers, Nunez, JBJ, Vaz, and Holt (1/3 vs. lefties), but Lin would be fine too.