Grips are the part you touch the most on the scooter so finding a comfortable grip for you is important for the enjoyment of your ride! There are plenty of options that you'll see and various designs. Adding a new colour or design of grips to your scooter is another great way to spruce up the look!
Are there any compatibility issues with grips?
You will shouldn't find any compatibility issues with grips.
The only thing to consider is the length. If you are running a Y shaped bar then the grips may end up sloping down into the dip and if this is something you'd like to avoid, it would be a good idea to look at the length of the grip.