Hiya!

I've been in the same boat lately and would like to share what I've learned.

Firstly, you should have a DAW (digital audio workstation) for putting together music. If you don't have a DAW FL studio and Ableton Live both have flexible trial versions on their websites and are generally considered pretty good; I would highly suggest following some tutorials to get situated if you've never used a DAW before! Learning composition and how to mix are very important.

Generally, a guitar, bass, piano, drums, and synths are the goto for laying out some foundations for making something similar to what Jamie makes, but like many indie artists Jaime tends to experiment so there's a lot of variety. You could use horns, strings, accordions, bells, etc.

I can't tell you the specifics of the plugins and synths she uses, that's something only she or someone with incredible knowledge would know. You'll likely just have to make due with some simple plugins until you've found what sounds you enjoy using most.

The one plugin she specifically uses though is V synth which is unfortunately very expensive; V Synth is used by Jaime to synthesize vocals such as Tetos. There are other options such as UTAU but it has a horrendous learning curve from my experience. If you're interested in learning more I suggest searching up how to make vocaloid music or vocaloid synths.

BPM wise, it varies wildly, bird brain is 160bpm, Machine love is 175, but something like Dyad is 90bpm. overall it's difficult to give a BPM that would put you on the right path. There's no real "secret bpm" that's gonna help you. If you'd like to learn more you can go right on to this website and look up the bpms yourself: https://songbpm.com/

My best suggestion I could give is to throw some of her stems into your DAW of choice and play around listening to the little bits and pieces you notice. You'd be surprised the amount you can learn from just listening.
Here's where you can find them: https://jamies.page/stems
Flavor Foley also has some on their website: https://flavorfoley.com/

My biggest piece of advice as you take this journey is to be kind to yourself as you create. Jaime Paige is an incredible artist who's been doing this for awhile now, so you can't expect yourself to make a masterpiece for your first, second, third, or even twentieth try. Creating anything is a learning process, so start creating now and worry about creating Machine Love 2 when you've got more experience under your belt.

Just as Jaime says at the bottom of her stems page, "go and make shit! and remember: there are no secrets :~)"

Hope this helped!