RUMBLE Buff or rework spitball ideas ( open for ideas)

Ive put in A LOT of hours on Rumble and probably too much for someone that doesnt play too much competitive. I love Rumble to death becuase he is so risk and reward and Im constantly doing jank builds that people say won't work but I end up demolishing. I've heard Rumble is too hard to play, or not flashy or his ult seems underwhelming. I personally don't have a problem with how Rumble works except that he is very dependant on team fights with teamates that have cc and needing iteam builds that heavily impact his style. If anything if he were to need buffs or reworks becuase lets face it, how many people can you name that main Rumble or say they absolutley love him. I think Riot could play around with his over heat ability. Make it more visually appeasing and maybe change up the how abilities work while in over heat. When I play Rumble I love to do speed and power but alot of the weakness of Rumble is he is heavily affected by cc and lacks cc, dont get me wrong his harpoons and ult do fine with cc but sometimes I feel I have to waste my ult to save teamates getting chased so they can escape and it leaves me open with little to no escape depening on my spells and iteam build. I feel like with Rumbles harpoons need an extra umph like do more in overheat you can hit one target with the first harpoon and hit another target while in over heat to do a chained shock damage to both targets. Ive heard people talk about how Rumbles shield needs a buff or rework but looking at patches recntly he was nerfed on his shield. maybe in over heat add an extra movement option like being able to jump foward like how the hextech proto works. Rumbles ult in overheat should make flames bigger and do like a scorch ability, after all Rumbles main abilities involve flames so what about a burn property. Also It feels like you have to heavily rely on rumbles ult in order to do any big plays or protect yourself. Honestly some of ideas could be broken if not managed but if done right I think Rumble would still keep his role but have an extra kick to how he is. I feel like people treat Rumble as a forgotten champ and could really care less.
Also some ideas for Rumble and how he could switch up his playstyle , Rumble is a mechanic by heart and always tinkering in his junkyard making crazy inventions. He is compared to Heim in intellect but Rumble cant bare to be a sellout. Rumble could have an upgrade perk similair to how Viktor upgrades his iteam to change his playstyle. They even mention at near the end of that Rumble invented a new weapon for his mech that was like a laser. kind of how shapeshifters work you could move Rumbles ult to a second ability page and have extra abilities like his laser weapon mentioned to play with that make rumbles mech more jaw dropping. Like the yordle made a devastating mech out of junk that looks unstabe as hell but man does it pack a punch. The little lore Rumble recieves states that everyone was dumbstruck when Rumble was announced he would be heading of to become a legend as he wandered the streets in his mech. I just wish he had that impact on people in the community.

Im open for ideas to help make this champ feel better and help bring positivity amongst other Rumble mains.