Snorlax Self-Destruct vs. Golem: 125-148 (34.4 - 40.7%) -- guaranteed 3HKO
Tauros Blizzard vs. Golem: 199-234 (54.8 - 64.4%) -- guaranteed 2HKO
Snorlax Self-Destruct vs. Rhydon: 131-155 (31.7 - 37.5%) -- 91% chance to 3HKO
Tauros Blizzard vs. Rhydon: 219-258 (53 - 62.4%) -- guaranteed 2HKO
Actually golem isnt that good at tanking the mighty self destruct from a theorical standpoint (yea the roll still favor golem surviving but you get the point), sure you can switch but you may not be able too while rhydon could get another hit going and its the same for hyperbeam punish, Rhydon EQ punish tauros way better than golem does (relative to ur own tauros)
While i agree that that golem seems low tier wise, it dosent mean much in the context of OU, its more about that golem dosent fit standard structures as well as rhydon does: yes explosion makes securing some games easier but you need to be ahead and rhydon is good enough to secure theses games already while its also able to pull off comebacks thanks to having set ups options.
Having boom on it kinda defeat the purpose of why you want to bring a rockground in the first place (altho i get that zapdos shouldnt be the main reason you bring golem or rhydon) so its all about explosion and still golem dosent find a place in what i consider good boomspam teams: dosent offer enough support early on unlike gengar eggy and cloyster who already cover on of the main golem selling point: pivoting on snorlax bodyslam without getting ruined by paralysis (like rhydon) but you're even more pressured to explode if the 30% happens, not great. Notice how Gengar Eggy and Cloyster already struggles with starmie (esp lead) and golem push this issue even further.
Boom targets is also unclear, some teams wants to remove starmie by using golem but you have to get around eggy and there just not enough time for that and if you think about it exeggutor itself also booms this two while offering much more on the table like status and a very very good typing
I have hope for this pokemon, at least from a theorical standpoint but so far its worst than the competition practical wise (rhydon does more,others explosion users do more) and especially builder wise:it dosent seem to fit any formula but maybe we just hasnt found it yet
Sidenote: make sure you log on ur main account if you want to give more weight to ur thoughts ;) otherwise you are in for a rooster (see what i did here ?) oh also charizard is bad and venusaur is the best starter