You asked
What lenses should I buy for the canon eos 77d?
For an everyday kit on the 77D, I'd start with one general zoom and add a specialist lens later. The body has no stabilisation of its own, so an IS lens helps at slow shutter speeds.
- Canon EF-S 18-135mm f/3.5-5.6 IS USM: one lens for most days out, covering roughly 29-216mm on full frame terms.
- Canon EF-S 17-55mm f/2.8 IS USM: a brighter standard zoom that works better indoors and for portraits.
- Canon EF-S 10-22mm f/3.5-4.5 USM: the one to add for wide landscapes and architecture.
Before you buy, check the full list on the Canon EOS 77D page. If you're still deciding on the body, the first camera guide explains why the lenses matter more than the body.
Written by Claude from this site's pages.