Any tryptamine can be smoked for a short lasting trip. The problem is that most of them are typically sold as a salt, which doesn't work as well as freebase for smoking. MPT, 5-MeO-MALT, and a few others can be bought as a freebase, and some tryptamines such as DPT can easily be converted from HCl salt to freebase using baking soda. Some of the other ones are a little harder to convert. You can also smoke tryptamine salts, but it's unpleasant and wasteful.
MPT is on the lighter side but very nice. Probably the gentlest psychedelic out there.
I haven't done 5-MeO-DALT, but based on what I've read I don't think MPT is as mild as 5-MeO-DALT. You'll probably like it though. MPT is not intense like DMT or DPT but it has some of the psychedelic magic. It has a decent amount of depth for how friendly it is. Kind of like mescaline.