The average Asgardian lifts only lifts 35tons.
5 Things combined Strength 500tons
5 Colossus's combined Strength 500tons
5 Doc Samsons combined strength 375tons
5 She Hulks combined Strength 500tons
15 Spider-Men combined Strength 225tons
15 Luke Cages combined Strength 450tons
10 Rages combined Strength 900tons
10 Strong Guys combined Strength 750tons
5 Wonder Men combined Strength 500tons
4 Atlas' combined Strength 400tons
50 US Agents combined Strength 500tons
100 Captain America combined Strength 40 tons
Combined Strength of 5,640 tons
Against a master stragist like Thanos himself is and has more just as much experience as these guys in fighting, (see kandy's post a bit above)
I mean seriously She Hulk punched the Silver Surfer attempting to damage him and he didn't even flinch and his durability is below Thanos own. A Class 100 Punch didn't made Silver Surfer flick a eyelash there are more opponents granted but there is a limit to how many that can punch away on Thanos at the same time.
Also I think there are those we can rule out as nothing but cannon fodder against Thanos.
One Colossus has stood toe to toe with Gladiator for a short fight and lost because a building fell on them which considering Colossus durability seem a little silly. Wonder Man was said to rivals Thor's strength which would make well into the class 100 range and given that their is 5 of them and Atlas should be around that level of strength as well and their is four of them.