Name: Sandy B. Ford River Twp, Michigan UP (Zone 4b) (Zone 4b-maybe 5a)
You need to thin them out now, not "soon"
And the best way to do so would be to carefully clip off the extras with a pair of scissors, rather than pulling them up and risking damage to the roots of the ones you plan to leave growing.
“Think occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer C/F temp conversion