What are the must-try Chicago-style dishes for someone visiting the city for the first time?

I'm planning my first visit to Chicago and I want to make sure I experience the local cuisine. I've heard a lot about Chicago-style deep-dish pizza and hot dogs, but I'm curious about what other iconic dishes I should try while I'm there. Are there any particular restaurants or food spots that serve these dishes really well? Additionally, are there any lesser-known local favorites that I shouldn't miss? I'd love to hear your recommendations and any tips on where to find the best flavors of Chicago!