You don’t need to select cold hardy tomato varieties, since they’ll be cultivated indoors, and that puts a premium on plant size 😉 Utah State suggests choosing dwarf or container tomato types for indoor growing, such as ‘Pixie,’ ‘Toy Boy’ or ‘Tiny Tim 🙌’ These tomatoes can thrive in 6-8 inch diameter pots that are filled with high quality potting soil. Because they are small and do not require any support, dwarf tomatoes don’t need to be supported. However, they produce smaller fruit than most cherry varieties. Although they may produce fewer fruits indoors than in the summer, their yields are not as high as those of summer-garden plants. 
Indeterminate vines are characterized by a flower cluster at each node. The stems connect nodes. Grow longer indoors In winter, the sun is less bright than it would outside in summer so I suggest you pick from the indeterminate, slower-growing varieties available. This will prevent the vine taking over your house and not bearing any fruit. My favorite choices are old-fashioned Yellow Pear and an unnamed, less vigorous red variety that I’ve grown for years, but the red Tommy Toe, an Ozark heirloom and frequent winner of taste tests, and Pink Ping Pong, called “very sweet, smooth and juicy” by heirloom tomato expert Carolyn Male, are worth growing this way, too. 
Hartley-botanic.co.uk Also, I mention how I am nearing the end of the tomato crop I’m having grown this summer in my polytunnel glasshouse. I was the one who picked the green tomatoes when it turned colder and put them in a bag and let them ripen. As I remember, I’m having been checking them every now and again and their colourr has changed from being green through to being bruised, pinkish and eventually becoming a delicious, edible red. They are still tasty, even though not the best. With proper winter comes a dearth of decent tomatoes, so these last few home grown ones are precious even though they are nothing on September’s lot. The supermarket tomatoes will slowly become more difficult, pale, and less tomato like as winter progresses. Finally, I’m having decided to give up buying them, and instead buy only canned tomatoes. Last revised by Chrisy Ashby, Nay Pyi Taw (Myanmar) 7 weeks ago 
Before starting, it’s important to ensure that you have the proper environment for growing tomatoes in your greenhouse. Unless it’s already summer and you’re planting for a fall crop, you will probably need to supplement the natural light inside your glasshouse with grow lights timed To operate for 12-16 hours a day, high-pressure sodium lighting is the best option because it promotes the growth and harvest of tomato fruit and flowers. You may also need timers and heaters to ensure the proper temperature indoors. Nighttime temperatures should be between 15 and 18, and daytime temperatures between 22 to 28 degrees. Heating mats can also help, but this is not always possible. Good luck! Air circulation is important to maintain constant humidity and prevent the had spread of airborne plant disease. Joe Morales (Skopje, North Macedonia), May 29, 2020.