I'd say it is a bit of a misconception that visual or auditory distortions make it difficult to trip in public unless it is really a complete soup you are getting lost in. Consider this: what else is there in a trip, mainly? Well, the mental / conceptual distortions: if not mindfucks then at least pretty weird thinking (,unusual emotions / attention issues etc...). There are only a few things left, not yet mentioned I mean, that you could hope for like mood lift - granted some 5-MeO tryptamines (well not 5-MeO-DMT, but 5-MeO-MiPT for example or indeed from what I hear of 5-MeO-DALT) have a fair component in the mood lift and stimulation department as they also seem to have some monoamine reuptake inhibiting effects...
I've learned though that it is particularly foolish to aim for such a non-essential effect by taking a psychedelic and hope you don't get the other ones. True, not all psychedelics are such an all-round full package deal, but effects are hard to isolate.
But to return to my point: if you consider hypothetically a trip with little mental weirdness but mostly sensory distortion, you should do fine in public - again unless it is such a soup that you have trouble making anything out. You would see or hear things that could be either entertaining, disconcerting or distracting, but inherently debilitating is another thing altogether. However if you have minimal sensory distortion but you feel and think extremely funny and weirded out, that's much more of a direct issue in public, because there is much less of a question of 'just holding it together' since your thinking and feeling stably is compromised.
Apparently people imagine, even drawing from their own experience, that the worst thing is getting freaked out by hallucinations, but the slightly more abstract effects on the cognition/mind, affecting thought patterns / interpretation and how emotionally or anxiously you react are wildly underestimated.
I've felt extremely weird once on MiPT, but I had no visuals or auditory hallucinations... usually it all goes more in tandem but I fear you might be making incorrect assumptions when you consider a smorgasbord of psychedelic effects. Psychedelics that isolate part of the experience (sensory vs mentally) and thought experiments may help you to reconsider?
So @ OP, I'm a little confused as to what effects you would still like to get from a tryptamine that would be no problem for tripping in public? Not sure what you have in mind with it. Benzofurans are empathogens that are discussed in the MDMA & Empathogen forum.
Maybe the confusion here stems from the fact that empathogens are different from psychedelics (there is overlap though), and it would make a LOT more sense if you are talking about wanting MDA / benzofuran type substances with as little MDA-type psychedelic wonkiness but just the party potential.
If this is your issue, tryptamines are not a particularly wise group of compound to try and tame to begin with.
I thought 4-HO-DiPT was pretty damn easy and smooth, like the 2C-B of tryptamines but better. But I enjoyed the trippy effects that you apparently wish to avoid. Mentally it was a walk in the park.. but I think not all reports on it are as consistent necessarily. This is probably not what you're looking for, 4-HO-DiPT is still a psychedelic, even if it is a softie.
5-MeO-MiPT or 5-MeO-DALT are possibly what you are looking for but you'll have to clarify yourself. Still, be careful, you would not be the first person to find out the hard way that you cannot abuse such compounds as empathogens or stims to party because their psychedelic component can really bite you in the ass.
