Cant really go wrong with any of the name brand servos that are on the market now. Your servos and brand will mainly be based on a couple factors. Price, speed, torque, if you are running LiPo RX packs and availability. When I am building a 1/8 buggy and need servos, I look foe 2 specific specs. For steering 250oz/in and stronger at .08 seconds or faster. For throttle, speed is the same but I don't feel I need as much torque so 200oz/in is the minimum.

I used to run the JR 9100 series but they have discontinued them as well as service and parts. So I was forced to find another brand and purchased A-Main's ProTek 150T for steering and 130S throttle. So far, no issues and nothing but good things to say about them.

You really cant go wrong with the world champion servos from Savox. Good enough for Ty...
The there are the always popular HiTec. Probably the best customer service in the industry. The servos are really good too. With the new line up of brushless servos (93XX) that are fast strong, LiPo ready and don't hurt the wallet....what else could you want. These would be my choice.

Don't forget about Futaba, Airtronics, Spektrum, and others. Any of these should be ok. Just find some with the sepcs you are looking for.

Good luck.