I know what Gundam is, but I've never delved deep into the franchise so I'm not quite sure where to start or what to watch. The ones I've been recommended, and seen, are:
08 MS Team
War in the Pocket
Thunderbolt
And I already know to avoid Gundam Wing and that one where it's set in the future and Gundams are used in a fighting tournament or something.
The most meme Gundam show is G Gundam.
It is a must watch show in terms of saying fuck you to political correctness.
It is also completely standalone so you don't need to watch anything else to enjoy it.
Each country's Gundam is a stereotype.
Look at these designs.
https://gundam.fandom.com/wiki/GF13-006NA_Gundam_Maxter
https://gundam.fandom.com/wiki/GF13-037NCA_Lumber_Gundam
https://gundam.fandom.com/wiki/GF13-049NM_Tequila_Gundam
https://gundam.fandom.com/wiki/GF13-003NEL_John_Bull_Gundam
https://gundam.fandom.com/wiki/GF13-066NO_Nether_Gundam
https://gundam.fandom.com/wiki/GF13-030NIN_Cobra_Gundam
https://gundam.fandom.com/wiki/GF13-020NK_Gundam_Zebra
https://gundam.fandom.com/wiki/GF13-045NSP_Matador_Gundam
Tequila Gundam Best Gundam.