They’re not without tradeoffs, but ventless dryers (aka heat pump dryers) have made a lot of strides the past few years. They tend to take longer than traditional dryers I believe, but use 30% less electricity overall, and don’t need a vent. There’s an $840 tax credit in the inflation reduction act that covers them, but as far as I can find it hasn’t been rolled out yet.
They barely exist in the US. Europe is far ahead in this regard. In Europe you won’t even find one of those extremely wasteful vented dryers in most shops.
I did some research on the US market for ventless dryers. The pricing is terrible but if climate matters to you, you will take the hit. One thing that really disturbed me is among the few that are available in the US, only a couple of them is not part of the #internetOfShit. So if you want a dryer that does not connect to the network options are very limited. All the non-discontinued Miele models are “smart”, but this one might be worth a look because it’s 110v and not designed to be on a network. Some Whirlpool ones are wifi-free (this was the biggest one I found but it requires 220v). And indeed it’s hard to find ventless dryers in normal sizes. Most are ½ the size of vented dryers.
(edit)
If you don’t find a suitable ventless dryer, consider putting a dehumidifier in a closet & make that the drying closet. You could perhaps rig up a drain so you don’t have to empty tanks of water.
I have a Miele washer/heat pump dryer combo. From my experience, the dryer is about the same as what I’m used to from a conventional dryer (~45 minutes), but the washer takes a lot longer. As I understand it, the washer does a more thorough spin cycle so the dryer has to do less work.
They also make these little boxes that are designed to be attached to the vent on regular vented dryers that can’t actually be vented outdoors through normal means.
I’ll look into this. I’d prefer to not replace a functioning appliance, but its been a few years since I checked into ventless, so it’s good to know that there is a potential tax credit.