If you need a device that can be set up for around 15,000 yuan, then the 891 is a good option if you prefer something compact. If you want a specific frequency band, the 7300 would be suitable. You can also buy used ones, which offer good value for money.
If you can only use equipment with a power output of 15W or less, the G106C is a good option for a transition. If you want to keep one for long-term use, the G90N is a good choice. And if you need a 6-meter antenna, consider the X6100. Recently, XieGu's new models have increased in price, so you might find some deals on platforms like Taobao.
If there were no budget constraints, I would buy the best option within the allocated budget.