Anyone who can handle BTM should be fine on Wing Gliders, which feels a little faster to me, but much more smooth. Werewolf I also found to be very smooth - just so SHORT in duration! Both are very family-friendly and not at all on par with Velocicoaster or even Mummy.
For the non-coasters, Monsters has a LOT of movement, but felt unlike much of anything else in any of the Orlando parks. The vehicle is very similar to FJ, but the ride felt very different to me. I got tossed around in my seat quite a bit, but don’t recall anything that felt like spinning or dropping.
My tolerance level has dropped quite a bit in recent years: the only ride that’s ever made me feel queasy is FJ for reasons I can’t explain. I can still ride things like Velocicoaster without feeling sick in any way… I just don’t enjoy the experience! Not sure when “near death” stopped feeling fun, but I decided on the crest of the “top hat” of my last ride on Veloci that it was my last lol!