OmniSpectra
Normal Super Saiyan 1, 2, 3, 4, and 5 (you could either consider the 5th form to be limit breaker, or an actual transformation, because it was hinted to in GT, via Buma and interviews). 5 Legendary Super Saiyan 1, 2, 3, 4, and 5.10 Saiyan God (Red), Super Saiyan God 1 (Blue), 2 (Blue evolved). 13 Super saiyan Rose 1, 2, 3, 4, and 5 (It's basically normal Saiyan transformation, plus Divine energy). 18 Ultra Instinct Sign, Ultra Instinct, Ultra Instinct mastered, Ultra Instinct perfected, Ultra Ego, Beast (still have my gripes about this one, via them basically copy and pasting the past). 24 False Super Saiyan (basically opening a tap, instead of just opening the floodgates), Oozaru, Golden Oozaru, Evil Saiyan, and Mystic Saiyan (add magic to a saiyan). 29 Through not counting the Oozaru transformations, we will get the Mc's 27 transformations. I'm not counting the grades (because with the example of floodgates, grade 1 is opening them. Grade 2 is opening them bit more, causing the user to look jacked; grade 3 is opening them more, but the user is jacked, to the point he gives up speed for strength. Grade four, which is perfected, is just the floodgates finding their equilibrium. And being at the best they could be, with their output and durability) and or techniques like the Kaioken. Because that's not a transformation, sure some transformations like Evil Saiyan and Ultra Instinct can be applied to other forms; but they have their own specific forms too, Kaioken does not. It only adds to a form, it does not have its own form. I'm also not counting the truffle saiyan transformations, because that's just what would happen if a truffle saiyan hybrid used the normal saiyan transformations, and Oozaru.