[wbmkk]

Which variety of tomato produces the very small red tomatoes often seen in the supermarkets. They are about the size of an old marble.
I used to grow sweet 100 many years ago but not too sure whether these are still available.

[AndyRVTR]

Plenty of varieties around.. Red Cherry, Sweet Millions, Honeybee are a few that I grow.

[mumofstig]

Gardenpearl/Gartenperle are good if you want small bushy tomatoes, Supersweet 100 and Sweet Million
if you want tall cordon varieties
https://www.nickys-nursery.co.uk/index.php/tomato-seeds-s-c-6_354_358

[AnneB]

I like Sweet Million too.  Other favourites are Maskotka, useful for outside tubs, and Koralik, a bush tomato with some blight resistance.

[Aidy]

Sweet Million for me too, I also grow Sweet Pea, tiny pea size but big flavour.

[Snowboar]

Sweet million are spot on I also grow costoluto Florentino the are a large but tasty