https://discover.familytreedna.com/y-dna/R-L48/migration
The final Roman withdrawal from Britain occurred around 410 CE; the native kingdoms are considered to have formed Sub-Roman Britain after that.

NE: England
Name: Norton 17274
Time: 500 to 600 CE
Location: Yorkshire
Country: England
Y-DNA: R-BY62920

Mid-East Coast:
Name: Lincoln 3044
Time: 1040 to 1070 CE
Location: Lincolnshire
Country: England
Y-DNA: R-Z8

Mid-South: (most recent ancient YDNA, 880-1000 CE)
Name: Oxford 22
Time: 880 to 1000 CE
Location: Oxford
Country: England
Y-DNA: R-BY176639

SW: England
Name: Worth Matravers 11574
Time: 500 to 700 CE
Location: Dorset
Country: England
Y-DNA: R-Z306

SE: England (Dated starting at the end of the Roman rule, 400 CE)
Name: Buckland 6
Time: 400 to 800 CE
Location: Kent
Country: England
Y-DNA: R-Z345