In my humble opinion, it is really difficult to find a direct upgrade for the already excellent ba200. I have owned/tried iems more than twice its price and to this day all of them have failed to convince me they are any better than the TDKs. Each and everytime I was surprised how refined and smooth the ba200 sounded. I am more or less convinced that the only possible way to obtain a significant upgrade over this little gem, for me at least, is to go the custom route.
Among the earphones you mentioned, I believe only the SM64 might sound better than the ba200. This is only judging from all the reviews I have read so far. I wouldn't go for the UM3X, I never liked its overly mid bass/ lower midrange heavy signature. To me it sounds inferior to the ba200 by quite a margin. This is just my opinion though. As for the others in your list, they are all downgrades in terms of raw technical ability even though they may have the extra bass impact.
I would like to suggest the XBA 30. I own both the XBA 30 and the ba200 and I would say they are roughly on the same technical level, but to my ears it has the extra bass impact while still maintaining the same smooth treble and overall refined tonality that you are probably looking for. It also has a bit more treble presence. Overall it offers a slightly more enjoyable listening experience.
Just my 2 cents!!