UI Jar: This is one of the better ones for “general” category. Check it out yourself. It has some extensive filters. Source: 11 months ago

Basically you pay some fee for an internship placement at startups, SME's or even big companies and it could be paid or unpaid, here or here. Source: about 3 years ago

Check here or here. You'd need to pay a fee to get an internship, however, it could be earned back (i.e. If the offer is a paid internship). Source: about 3 years ago

My apologies, yes I have spoken with them several times (as an applicant). Basically the company in the first internship link works with big companies and they guarantee that you'll get an internship at the chosen company. Source: about 3 years ago

You could search for remote jobs (check here or here). You could also do a remote internship (check here or here), and afterwards ask the company to continue hiring you (assuming you aced it at the internship). Source: about 3 years ago

If you can afford it, do it and apply for remote internships (here or here). This way you have a chance to be employed remotely (a.k.a working from anywhere) by asking the company to continue employing you. Source: about 3 years ago