Direct buy platforms are built exactly for that use case. https://paybis.com/buy-tether/ does it cleanly enter your wallet, pick your amount, pay by card and it lands without you having to touch an exchange interface at all. Worth mentioning they got MiCA and PSD2 licensed recently, which for a platform you're trusting with card payments is genuinely relevant the details are in this X post if you want to see what that actually covers. For stablecoin purchases especially I'd rather use something operating under a proper regulatory framework than just whoever has the slickest landing page.