The Esks already have some excellent Canadian DE talent in Boateng & Betts, and they drafted 3 more DE/rush end types last draft. I bet D. Stevens gets looked at as CFL DE, but maybe also at MLB ? There are lots of good looking LB prospects for them to look at this draft.
The Riders have the Herdman bros. at linebacker, plus Blair Smith, Micah Teitz & N. Onyeka - pretty solid depth even if it is looked at more as back-ups and special teamers.
Woodson started at D-half some for the Argos last year and Colquhon has started at corner for the Esks; they could both end up solid starters in the Argo D-backfield; adding a natural or talented safety would be a real bonus.
Some teams are already loaded at Canadian talent at certain position groups (like the Esks with NI receivers), but lacking at others.
Ottawa may have lost a good starter on the O-line in Johnson, but they have several other former draft picks as good O-line prospects (Fontana, Pickett, Szott); and they added DTs in Laing (proven CFLer) & S. Charles (NFL vet) and have 2020 draft pick Adam Auclair to go with Pruneau, plus former Esks LB Mulumba-T, on their D.
Lots of good Canadian talent in the league now, and with 2 draft classes to coming TC it's going to be crowded for National players; so teams might be more tempted to use a high pick on an NFL flight-risk player this coming draft as more of a futures type pick ?
The Bombers seem to have biggest need overall with low numbers of Nationals on their roster. Not sure why they were not more active to sign some Canadian talent as FAs ?