One of the most unique and convenient ones we suggest is an adjustable dumbbell set.
Our guidance would be to start with a 5lb (2.5kg) or 10lb (4 or 5kg) dumbbell as your lightest weight.
Depending on your strength level; some naturally stronger people can progress to buy dumbbells pairs of 15lb (8kg), 20lb (10kg), 30lb (14kg), 40lb (18kg), or 50lb (24kg) as your top weight.