It’s all about personal preference…
Some people like thin grips, some like fat. Some people like knobbly grips, some like smooth. Some people like long grips, some like short. Some people like black grips, some like coloured…
You getting the picture here?
All I can suggest is trial and error… Go to a shop, try as many out as you can, you’ll soon learn. I’ve been riding for 15 years now and still have only tried a very small amount (compared to whats on the market) number of grips, but I do at least know I like mine fairly thick (not as thick as Oury or the Sunline thick though), some knobbles but not too much, and reasonably soft to touch. But like I say, it’s all personal preference.