They're just classic rides that are found at virtually all fairs.
Most staple rides for British fairgrounds:
-Waltzer
-Twist (PWS ones are the newer models and very slick so preferably one of these)
-Jump & Smile (different models available with either OSTRs or lap bars).
-KMG Freak out.
-Dodgem track
-Matterhorn
-KMG speed/fabbri booster (only seats 8 people so I assume would be too low throughput).
-NA super rides “superstar”.
-AK rides Starflyer (30/40m).
-Waveswinger
-Tivoli remix/extreme
-Miami
Based on what’s been discussed about the target market they are aiming the new flat rides for, i would expect a combination of four of the following rides.
Waveswinger or Starflyer, Miami, Matterhorn, dodgems, waltzer, twister, jump&smile.
Would be kind of funny if they hired a waveswinger or star flyer after the removal of the toadstall.
My main question though here is- how will these rides be operated and staffed? The funfair operators would ideally want to man it themselves although Alton towers might insist that park staff are trained on these rides and Merlin H&S procedures are followed. All of that is much more complicated from a logistical point of view than letting the families run their own rides on site. I could also potentially see them lean towards a jump&smile with ostrs rather than lap bars as they might view it as “safer” (even though it makes no difference). It will be interesting to see whether AT require all the standard h&s procedures and coswp procedures for the park to be followed or whether they just let the operators do their thing with their rides.