For reference, Check out my profile to see what headphones/iems im coming from:
I own the IT03 and i honestly cannot recommend that one enough, and it has really great sub-bass (like a subwoofer in your car) and airy highs that are PERFECT for edm, although it is a bit out of your price range. For 100 dollars, I hope the IT01 can live up to its big brother and seems like a safe bet. I love what ibasso is doing and my IT03 is my favorite IEM to use at work.
Otherwise:
The collaboration of Shozy x AAW in the Hibiki Special Edition is a single dynamic that has been making waves and looks beautiful to boot for ~120. I am planning on grabbing a set once i can budget for it. (i just bought the Empire Ears Zeus R so im in the hole a significant chunk of cash
)
For only 18 dollars , the KZ ZST (single dd and single BA) is one of my favorite iems because it has a nice relaxed vshape sound and fantastic soundstage. i use it probably the most out of all my headphones since its so cheap i dont care about keeping it in the heat of my car, and they amaze me every time. almost all of the audio stuff i own cost more than the ZST. honestly you should just get whatever else + the ZST LOL.
I havent heard the GR07 but lots of people recommend it, including a great review of it by lachlanlikesathing, though it is an older model. If you go for that one make sure you get the "classic" version I hear that ones the best.
The RHA CL1 is REALLY great and has a ceramic driver for a bit over your price range if you can find it. Amazon doesnt have it in stock. Really under rated.
The Pinnacle P1 is a fantastic iem that you can get on the classifieds for much cheaper than buying it new and has a decent sized following
The Fiio F9 pro is exactly 100 dollasr and from when i listened to them at canjam they were pretty good,
The TFZ King and King Pro have a really bombastic sound thats perfect for hip hop and electronic music and come greatly reviewed.
The Shure se215 is a classic with relaxed and warm sound signature and for a long time was the "iem to beat" at around 100 dollars before all the chi-fi stuff hit the scene. I hate the cable though. super thick and unflexible. I would replace the cable immediately. It sounds great with a Campfire Audio SPC Litz cable.
Fidue A83 Dual BA + dynamic driver comes VERY highly reviewed and is an older model so the prices for it have dropped. Used to be around 250-280 new, i think i saw it for 150.
Honorable mentions if you dont mind chi-fi:
magaosi k3
kinera seed, REALLY beautiful with a gorgeous cable.
simgot en700
KZ zs5 (zs6 has sibilance issues)
Lastly, i would recommend you check out Twister6's reviews on this forum. He reviews a ton of iems. also i havent even mentioned anything by Dunu (who caught on to the hybrid game early) and
Goodluck!