You can get an HDMI adapter on Amazon or almost anywhere. One end plugs into a USB port and the other connects to your TV. I have one for my Chromebook when I use it with my tv which I am not doing now as my tv is broken. :-(
Here is the Amazon link for the one I have:
https://www.amazon.com/gp/product/B083YYFLLB/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
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