In fact, it is quite complicated to say it is complicated, but it can be simple if you want to. Just treat her as an ordinary friend and give her a more popular gift, but it is best to ask your friend's opinion before giving it.
You can give her a beautiful notebook and write a few words of blessing. You can also give her fruits with more exquisite packaging as gifts, or a pot of plants that can prevent computer radiation.
It is also good to give her a portable tableware, which will be needed at any time. Other things like scarves, jewelry, etc. are best not to give.
In fact, you can also give her some couple things to let your friend benefit from it, such as you can buy a pair of couple mobile phone pendants, or customize a pair of real dolls online, imitating their photos. The dolls are made with interesting shapes and backgrounds, and they are also very realistic.