Fretless basses need the same adjustments as a fretted bass. If you are asking for bridge recommendations, Schaller, Leo Quann, Hipshot, Gotoh and Fender all popular.
Rocky
Of course, no way to adjust action to taste without such.
__________________
life for its own carnal pleasure. Bass: Jackson JS3. Bass strings: Rotosound swing66. Guitars: BC Rich. Guitar strings: Daddario XL nickel. Zoom club#2. BC Rich club#26.
well, not really true. You can adjust action, just not by the turn of an allen wrench.
Plenty of fixed bridge basses out there, and they get adjusted. I think the OP is asking about adjusting for intonation. The fact is that with fretless adjusting the bridge for intonation is less of an issue.