These are some solid tips, I would definitely second making sure you don’t plant them out before it gets warm (same with any warm season crop) - does a lot more harm then good.
Don’t rush to transplant, either. Cold soil and air temperatures can stress plants. Wait at least a week or two after the last frost. Nighttime temperatures should be consistently above 45 F. Transplants exposed to cold temperatures (60 F to 65 F day and 50 F to 60 F night) are more prone to catfacing. [gardening.cornell.edu]
My other tip for the home gardener is to use rebar mesh tomato cages. Here is how I use them: 2020 Tomatoes and Tomato Support - #3 by dimitri_7a