I finally found a poké bowl place in Singapore that I like (1 Keong Saik Road, 6223-5001). Granted, the selection of ingredients isn't very wide, nor do they have sesame oil or red chili oil as a seasoning. The prices aren't that cheap either. But I'm happy to come back again because the ingredients are of high quality, the portions are generous, and I was able to find the right combination of ingredients that made it work for me. I'll be coming here regularly.