do you want a permanent mount antenna or a detachable mount?
Most folks seem to like using a detachable mount with a handheld radio.
If so, get a decent dual band magnet mount and find a convenient place to put it and the cable.
If you're gonna be using the radio in the vehicle a lot, I'd seriously suggest getting a mobile radio as well as a permanent mount antenna. You'll get much better reception and transmitting than you will with a handheld radio and you won't have to deal with the radio having power and antenna cables attached to it when you pick it up to use.
I use both, vehicle mounted for the power and better coverage, HT for convenience and portability. I do use a better antenna on my HT made by Comet, replaced the "rubber ducky" antenna with it, much better. I also have a magnet mount for using the HT if needed and a Diamond/Comet dual band mounted on the Suby all the time for the mobile.
Almost forgot, congratulations on joining the Ham fraternity. I hold a Technician's license right now, hoping to get my General later this year.