Could anyone recommend an up-to-date uncluttered resource or comparison of options for citizenship by investment - some list of countries that offer this instrument. I'm mostly interested in (but not limited to) real estate ownership.
You can just google there are sites offering this info like below. I would however speak to an immigration lawyer that has real world experience as its never as easy as what you read on a website as most of the information tends to be utter bs.
Here is nice comparison tool - Program Check - Arton Capital
If you decide to go through with it, i would suggest finding a local agent in the country of your choice and contacting him directly. Generally cheaper and faster. Agent in your home country would want commission for basically nothing.
I'd be very clear on what you want to achieve, what sort of passport you need (which countries they will give you visa free travel to, if it makes bank account opening easier, etc) and so on before laying down the cash.
Check Citizenship by Investment Programs – Second Citizenship
They are able to help you after, also with passport renewals, lost or stolen passports, driver’s licenses, setting up offshore companies, foundations and trusts, real estate investment, local telephone line with monthly telephone bills and a tax residency in Dominica.