>>10599818Like others have said, Thrilling 30 Springer/Sandstorm are great, specifically id recommend Sandstorm, he looks amazing in all 3 modes, Springers alt modes arent nearly as cohesive.
Id also recommend the Siege Astrotrain and its remold Velocitron Galaxy Shuttle, super easy and fun to transform and good in all 3 modes. And ive never owned it but Takara's Super Megatron gets very positive reviews, but calling that tank a mode is very generous imo
If you dont mind older figures id also rec checking out Energon Scorponok whos a chunk bot with tons of fun or some of the Dark of The Moon Human Alliance figures like Thunderhead here who have a third human piloted mode, these guys often get ignored in tripple changer discussions.
If youre more flexible about just wanting figures with multiple modes, Titans Return Sixshot or Overlord and their repaints are really good, and similarly Siege Flywheels is awesome. Then theres the lord of multiple modes Car Robots/RID Megatron/Gigatron
For 3p, i think my favourite triple is Unique Toys Provider, for multi modes theres MMC Hexatron, MMC Carnifex or Fansproject Madlaw/Knight. Then theres a million that ive never experienced but look great. Just keep in mind that a lot of 3p stuff is gonna lean on the complex side and also mostly into MP scale
And i guess technically all the titans are fun and triple changers but I'm guessing thats not really what you mean.
>>10599831I had this figure in the regular megatron deco and found it to be a huge flop, ive been tempted by this g2/Archeforce deco though