Dont think hes close to being good enough for what's trying to be a top team tbh. Hes done well this year and is a bit of an inspiration for Villa, but whenever I watch him he just doesn't strike me as more than a player for a mid table team who we wouldn't bat an eyelid at if he wasn't English. Buendia at Norwich for example has maybe even been more impressive this year, but obviously you won't hear about him coming.
Would rather look elsewhere. Maddison I'd say is a lot better but at the same time, will cost way too much relative to his own level (and likely won't leave with them in the CL). Better to look abroad.