Would a variation of Fisher's Baltic plan have been more sensible than Gallipoli?
Short answerGallipoli could have been sensible if naval mine clearance and troop landings had followed immediately, before the Ottoman defenses were reinforced.
NotesThe answer treats Gallipoli as a potentially workable operation undermined by its pace and sequencing. The initial naval attack exposed weaknesses in the Ottoman defenses. The pause that followed gave the defenders time to repair and reinforce those positions. A more aggressive alternative would have used modified, minimally crewed pre-dreadnoughts to force a path through the mines while troops stood ready to land near Constantinople and secure the Dardanelles.