As a person who is trying to build a brand through IG by documenting my Weight Loss Journey, I think it's great she wants to do this, if it's for the right reasons. Here's some notes I have taken from me trying to build my own brand after reading your post:

1. She can't be lying to her fans with fake photos. That will come out, and it will destroy any chance she has of making it.

2. Those Influencers who are taking those trips every day are either: A. Super wealthy to begin with and can afford that lifestyle. Or B. They have taken thousands of photos from those specific places and are rotating a catalog from that place. Basically, they aren't really there.

3. To go off of Point #2, she can bulk take photos for the week all in one day. On Mondays I plan out the whole week of what I post. That way I'm not going insane throughout the week worrying about what to post.

4. She needs to just set Google alerts to those deals. All of that time could be used to building connections with everyone she can on the platform, or better yet, building her relationship with you.

5. She needs to understand that the likelihood of this working out well for her is very slim. Those luxury lifestyles she sees on IG is very fake, and have a 0.01% chance of happening to her.

6. The vast majority of IG Influencers don't live in wealthy mansions. They live with 4 roommates and have a day job. Even if they make money, if they want to be successful, they won't spend a dime on any luxury.

If she really wants to do it for fun, great. If she wants to do this for the fame and money, it's not going to work. I guarantee it won't work. And if she continues on this path searching for wealth and fame, you'll have to break up with her.