TDK seem to be to only manufacturer making cassettes these days, (unless you know different) fortunately, the offerings are not that bad. I use a Tascam pro machine and a Sony walkman pro and excellent results are obtained without Dolby NR
The bass is especially good and the overall sound is quite well balanced for a standard ferric tape. The shell is reasonably well made, so I have never had a jamming or runout problem with them.
It's just as well these cassettes are quite reasonable as it seem they are the only choice. I have seen some TDK SA tapes around, but these are generally awful and hard to find at anything like a reasonable price.
So, if you have a half decent cassette player (or not) these are the tapes to go for and they are very reasonably priced.