This issue needs to be considered from two angles.
First, what kind of look do you want to get?
Do you need the most transparent designs with a minimum of metal? It may be possible to mount a glass fence in a hidden way. If not, then mounting glass sheets on points or mini-racks will be a good choice.
Secondly, the installation conditions.
For example, if the stairs are narrow, then any railings that are placed on top of the steps will make it even narrower. The best choice is point mounts or racks that are attached to the steps from the side.
Send us information about the installation site and your wishes, we will help with the selection of a solution.