personally think that girls generally prefer meaningful gifts and representative gifts. You can ask your friends to give them a representative gift related to them. Girls are easily moved and will treasure it.
You can also observe what type of girl she is. If she is a cute girl, you can give her some plush dolls, mobile phone pendants, hairpins, cute notebooks, etc.
If she is more mature, you can give her necklaces, roses, rings, diamonds, etc., but you must state that they are given by her boyfriend to avoid misunderstanding. In short, as long as it is a meaningful gift, it will be a commemoration.
She will like it. The so-called gift is not about the price, but the other party's intention. Haha, so giving a small gift with the other party's intention is the best gift.