180° is more than enough for a steering servo. If you're on a budget the most bang for your buck are likely these. I've used several of them in the past and they never failed me. But if money is no object this or this are higher quality, stronger, faster options.

I mean most people get by with the inexpensive red 20kg servo on Amazon. The top upgrade would be a savox servo. I recommend the inexpensive one and upgrade something else on your rig with the money saved. ANNIMOS 25kg RC Digital Servo Large Torque High Speed Full Metal Gear Waterproof 180 Degree Control Angle Red https://www.amazon.com/dp/B07GJ6ZCVY/ref=cm_sw_r_apan_i_SKWC1RRV7HTSP65M2NN4