Well Fat Buu wasa confirmed Universe Buster and for all buus in dbz it has been explicitly stated theu can cause destruction on a universal level. This is very plausible as super Buu could create dimensional rifts. Beerus was at a time weaker than Buu but he was still God of Destruction with enough power to wipe out the kaoishin realm.
The kaoishin realm is a mini universe/dimension bigger than a quadrant of the mortal universe. I believe they were Solar level far before cell as cooler said he could destroy the sun,the spirit bomb that failed to kill Frieza was powered by four suns(king kai noted how suns are assets to spirit bombs). In Friezas first form he could destroy a planet with ten times earth's gravity and his final form is nearly two hundred times stronger in the namek saga so cooler saying he could destroy a sun is plausible. Cell simply had an attack with a area of effect that matched the solar system but its potency is likely far beyond and could likely destroy more if the universe was condensed. Id switch Gokus flight and combat speed as ge can react wayyy faster than his flying speed(likely due to popos training) Gotenks was the first to show lightspeed travel but piccolo showed light speed attacks in early z.Broly ravaged a quadrant of the universe with less than super perfect cells power and its obvious he destroyed solar systems. In the guide book it shows how the universe is formed similar to ours but it jusy has different terminology.
Galaxy refers to quadrant but there are still "countless galaxies" in each quadrant. Kid Buu was at least able to wipe out two quardants as Beerus could destroy the kaoishin realm. At most kid buu could destroy the whole universe as elder kaoishin said that if buu wasn't beat he'd make the universe go "pop" . i have all the scans on my phone and i do constant research so please take my word for it. If kid buu can't destroy the universe Buuhan definitely can.
Now time to use all this to show how strong Goku is.
Gotenks moved ftl before the guidebook said he surpassed vegeta and co. And its obvious he reacts immensely faster. Gotenks improved in the time chamber and his ss3 form is child plays to Gohan.
Vegito made buuhan (someone who spanks kid buu the speculated universe buster) look like a child with a fraction of his true power but still would lose to suppressed Beerus.
Ssg Goku contended with a Beerus who shows way more power than needed to defeat Vegito and now Goku is greater than 70% Beerus. Atleast70 times stronger than universal threats and dimension rifters.
Concentrated attacks are yhe strongest so i think its bad to measure dbz power with area of effect as weakened frieza popped earth like a balloon but stronger attacks only left craters. When gotenks and buu ripped through dimensions it shouldve been obvious universal claims were plausible. Using the fact thst the kaoishin dimension is almost as big as a fourth of the universe but Super buu isnt nearly as strong as a tenty of beerus's current strength after training for millions of years with whis should make it obvious beerus is over universe busters in combat. The fact that new universes are being introduced should make it obvious. Namek was introduced after a planet buster was and the kaioshin dimension was introduced after buu was introduced. Beerus can wipe out the after life and mortal universe.
Goku is far beyond multi solar and past dimension rifting in attack potency his area of effect is unknown as goku doesn't aim to destroy.
Superman took am attack strong as 15 suns and it didn't destroy the moon so its obvious attacks can be a certain level without much catastrophe especially with martial arts.
Before anybody brings up the forty ton incident bukujitsu makes lifting nearly impossible according to the guidebook and Gokus bukujitsu was known as inferior to piccolo(who could fly with weights and goku could barely fly but goku was still stronger)
Goku before the god boost had enough force extered through his fist to displace a large portion of king kais planet with ten times gravity and condensed mass. When people on dbz forums did calculation they put his strength at white star level.
Ki Potency
ost Universal/dimension rifting
Ki area of effect: At least greater than Broly's which could take many galaxies throughout a "galaxy"(quadrant).
Speed:Beerus's speed feat in super where he appeared behind a gas giant after destroying a planet was calculated to be 500 times the speed of light which makes sense if you think about the difference between him and Gotenks. Goku is likely above this as beerus was likely suppressed.
Combat speed/reaction speed:Massively faster than his travel speed as when goku was mach 28 in saiyan saga but piccolo and him had attacks that could near instantly reach space with pls less than a thousand.
Goku punched whis's hair in rof manga and it was referred to as a "close one" from tge fastest creature in the universe ,Whis.
This is all plausible as Gotenks was a dimension rifter faster than light who could compete with a universal destroyer or atleast dimension destroyer.
Goku is tiers above.
Unless he lets his gaurd down
Durability:Only post dimension rifters and Gods can hurt him now. Its better to use potency than area of effect.
