16-35 2.8 II, not heavy, honestly speaking

my canon lens setting include:

16-35mm 2.8 II, its smaller and lighter than 24-70mm (for sunset and wild angle).

40mm pancake (for street candid).

50mm 1.2 (for portrait).

70-200mm 2.8 nonIS (its a keeper lens, get a monopid, anything with group). you can consider get a 70-300 mm non-fast lens for candid shooting.

you need fast lens for seriously playing photography, for amateur.