Looking to travel to SE Asia - looking for advice

Hi,
25 black female here looking to travel to SE Asia with white boyfriend (29). I was wondering if anyone has had experience travelling around this region as a black person and would give me better insights/ advice on where’s best to travel and avoid. My bf has been to SE Asia before and he loved it but obviously he would have had a completely different experience to me. I have read around on different places and other peoples experience but I would really appreciate any advice. We would be looking to travel for about 2-3 months and here are a list of countries we are considering in no order:

Vietnam
Japan
Malaysia
Indonesia
Philippines
India
China
Sri Lanka
Nepal

Also if you do recommend some of these places , which areas/cities would you say are the best.
Thanks :)