Most folks have preferred seed companies, and many of them carry some dwarf, patio, container, mini- how much variety can depend on the company.

What size plants are you looking to keep within?

I'm not familiar with these, but this website claims a large selection to choose from

renaissancefarms.org

I don't see "micro" as a common type at the more common seed companies. Ebay/Etsy has some, sellers which can be either really great or a scam, check their history.

I have had bad luck with renaissance farms. They substituted seed varieties and did not respond to contact. I had to contact my credit card company.

I've had better luck with https://toddsseeds.com/ and

https://victoryseeds.com/collections/micro-tomatoes

I just participated in my first MMMM tomato seed swap (which is organized and run nearly single handedly by Gary Fitzgerald, who frequents this forum) and I received more tomato varieties than I can ever hope to grow. I have a generous selection of dwarf and micro-dwrfs that I haven't even really looked at. I would be happy to pass them on to you, if any of the varieties are of interest to you. I am away from home, so don't have the seeds or list at hand. I will try to check back in tonight with more specifics. Do you have any particular varieties in mind?

Martha

I never grew micro tomato plants before so I do not have a particular variety. I just need plants that stay under 16 inches tall. I plan to keep them in containers on my deck. I am primarily interested in something that would taste similar to your standard cherry tomato

@cgbr22

This is what I have that is labelled as "micro dwarf." I am not familiar with any of these, and have not even looked them up. The info is from the labels included with the seeds.

Whippersnapper: Oval, pink, RL, det., trailing habit

Rosy Finch: Pink cherry

Pinocchio Micro

Orange Hat: 8 inches, cherry-sized, orange

Hardin's Miniature: 12" tall

Inkspot: black micro cherry, 10-12"

Bonsai:large red cherry

Let me know if any of these are interesting to you. I also have a bunch of simply dwarf types.

Martha

I am interested in the pinnochio micro and the bonsai

I tried to private message you, but didn't see that option. If you can private message me and send your address, I could mail the seeds to you.

Martha

It doesn’t give me an option to message you. Can you email me? Cgbr22@msn.com

I'm growing orange hat for the first time and got the seeds from Bakers Creek. The germination rate is great.

On a last minute whim, I ordered Micro Tom Tomato seeds from Totally Tomatoes and they arrived in about 48 hours. I had about 80% germination in 5 days. I have a covered tomato planter I can use for them so I may even end up with a few ripe ;)