The strongest rims are the Ryde Andra rims. See: Andra series - Ryde

For spoke nipple 13

Rim Specifications:
Brand: Rigida - Ryde
Model: Andra 10
Color: Black
Size (Inch/MM):  28" / 622
External width (MM): 25,5
Internal width (MM): 19
Weight (GR): 769
Material: Aluminium
Single-walled / Double-walled: Double-walled
Single eyelets / Double eyelets: No eyelets
Number of spoke holes: 36
Spoke nipple size: 13
Brake surface present: No

Data for spoke length calculations using the Sapim spoke size calculator:
Internal diameter of the rim (MM *Not ERD*): 583
Rim thickness (MM): 3
Number of spokes in the wheel: 36
Number of crossings gear side: of your choice
Number of crossing non-gear side: of your choice

Link to spoke calculator: www.sapim.be/spoke-calculator