I'm headed to London soon and hoping to meet some of these providers:
Othello (legendary, discussed here)
gamboa25cm (some good reviews on Hunqz)
Teninchtopx (OnlyFans star, has an ad on RM, probably expensive)
UJXXL (expired ad on RM, not sure he's currently active)
DuncExtraLarge (good reviews on RM but only two cock pics that aren't that convincing)
Any insights/experiences?