9. Demarcus Robinson
Robinson is definitely a WR3/WR4 type, but he can be a useful player. He got close to 50 receptions with the Baltimore Ravens this past season (48), catching passes from Lamar Jackson, Tyler Huntley and Anthony Brown. Over four seasons where he played a notable with the Kansas City Chiefs (2018-2021), he had at least three touchdowns in each while averaging 11.6 yards per catch in a background role.
With either a less than prominent/consistent role or a rough quarterback situation thus far in his career, Robinson probably has yet to be able to show his full potential. He may make some sense as a bargain basement flier to replace Chark if the Lions land in that circumstance.
8. Nelson Agholor
Agholor’s value is basically in the tank after two disappointing seasons with the New England Patriots. But he was a certfied deep threat with the Las Vegas Raiders in 2020, when he averaged 18.7 yards per catch (second in the league; 48 receptions for 896 yards) with eight touchdowns. He also has two 60-plus catch seasons on his resume, though they were a while ago–2017 and 2018 with the Philadelphia Eagles.
In some light, Agholor is a clone of Chark. And that’s the role the Lions would pretty much be filling if Chark is gone, while accounting for Jameson Williams stepping into a bigger role.