I have grown various 'different' kinds of basil. Thai basil, and lemon basil are my faves of basil. I have grown lime basil and I must have put some seed in the box too, because it came up this year on it's own. I currently have Thai basil, and cinnamon and lime basil as well as the 'regular'. lol. I'm a basil addict and get what different kinds I can wherever I can.
I love the lemon things as well as those close to it. Lemongrass, lemon verbena, and lemon balm. LOVE pineapple sage. Have grown them all and currently have many of them. Catnip and cat mint are two different things but similar. Yes, just separate all the mints as they cross and become something quite weird. I've had that happen. Still good tasting tho.
I have grown Cuban oregano last year, and have sources for more this year. It's awesome! Strong like Greek oregano, but different. I just LOVE caraway thyme. As yes, it does taste like caraway seeds, and is no difficult to grow than all thyme is, pretty easy. But I can't find it anymore.
I also have grown wormwood. I currently have a skullcap bush that made it thru winter and came back. She puts out all these beautiful deep purple pink swirls of flowers. I have grown tansy and yarrow.
I know there are more, as I started out 'different' over 30 years ago in the herbal medicine format, and then found 'different' in food herbs too over the years. Herbs are my fave things to have around plant wise.
Best wishes everyone.