In trying to figure out where to ask things that lie somewhere in between tourism and permanent moving, I'm confronted with dozens of meta QA and hundreds of back-and-forth comments on them re. travellers vs. expats (akin almost to political debate). Much of this is from around 10 years ago.
The site Tour puts "issues related to immigration / expatriation" off-topic, but without actually defining those. Some things are clearly expatriation, some things are clearly not, but there is a continuum, with some things falling in between the two.
Firstly, would these sorts of things be on-topic for Travel.SE? Eg.:
Extending visitor permits (not work or study visas or permanent residency); the same permits tourists get on entry to a country, can in some countries be extended for many months, if you're not taking work in the country.
Problems connected with staying somewhere more than a couple months but less than a year. (This time range can be awkward, particularly with accomodations.)
Problems connected with having "bases" in two different countries, that you repeatedly travel between.
Secondly, if, due to some overlap in the site scopes, such a question is on-topic at both Expatriates.SE and Travel.SE, then there are two choices: (i) post it to Expatriates.SE because it might be somewhat more on-topic there; or (ii) post it to Travel.SE because this site gets 10x more traffic and so questions may be more likely to get answered, even by people with longer-term travel experience.
If you choose Expatriates.SE but don't get answers, would it be appropriate to post substantially the same question to Travel.SE with a link at the top noting the Expatriates.SE question?