From what I've gathered when I looked into moving to CH (I could be wrong, and for personal/pandemic reasons didn't pursue this avenue), it's very hard to build

From what I've gathered when I looked into moving to CH (I could be wrong, and for personal/pandemic reasons didn't pursue this avenue), it's very hard to build a long term life in Switzerland and virtually impossible to gain citizenship through anything but marriage or extraordinary circumstances, but YMMV. If you want to move to Switzerland from the U.S. the easiest thing is to just go there on a 90-day visa, and constantly re-up it by crossing the boarder and coming back. This will work temporarily, and if you want to stay on a permanent basis, the only way I found was to get a non-EU eligible work visa, which requires you to leave the country, apply and get approved, find an employer, and only then re-enter. You cannot just find a job while on a 90-day. Most emigrants I met in Zurich where employees of multinationals who managed the visa process for them. If you don't work for an international bank, you're second best bet is to go there on vacation and fall in love :P