Welcome!
I have and like Yaesu, but Yaesu doesn’t make a radio certified for GMRS. They make great ham radios though. People will say that certification isn’t important, and as you progress you might even decide that it isn’t, but for someone trying to get started it sure makes it easier to use the radio without having to worry about violating a regulation. Others will tell you that it doesn’t matter if you violate the regulations because the FCC doesn’t enforce them anyway. Statistically there is some validity, but I still like to know where I stand with respect to regulations.
Wouxun is arguably one of the best GMRS radios made and certified for that purpose. The people who have one like the KG1000G Mobile Radio. It’s a 50 watt radio. As far as I know all mobile GMRS radios have a UHF connector for an external antenna. They have to.
Several of us have purchased the Radioddity db20g, which is a tiny 20 watt GMRS mobile radio. It’s small and easy to use, plugging into the cigarette lighter. Like the Wouxun it needs an external antenna. It’s about $100, unless you wait for a sale. I bought two of them directly from Radioddity for $87 each. It’s sold under a couple other names as well. Firmware might vary based on brand.
These forums have lots of discussions about what radio is best. There will never be universal agreement.