If you'd like to burn wood without the risk or mess, we just got a Solo stove and they are awesome (and currently on sale). Totally safe for the deck (just get the stand), the wood burns super hot so you just have fine ash to deal with, very low profile so you can tuck it away when you aren't using it. We got the Bonfire size so that we can use it at home and take it with us on the road for dispersed camping where it's safe to have a fire but there is no fire ring.
We also have a fire pit with a natural gas line on our back patio, but we wanted something for the deck and honestly this kicks out WAAAAY more heat than the gas fire, so I think when it starts to really get cold this will extend our outside season way more. A bunch of our neighbors have gotten these in anticipation of needing to socialize outside this fall/winter.
https://www.solostove.com/