Early blight (I believe) on transplants not yet in the ground- Remedy? Rx? Toss em?

[LBlala]

Hi I have 8+ transplants. Half I'd ordered & arrived Wednesday, looking nicely dark green but lil warm/shrively. Was given the others weeks ago. Are sad, leggy, yellowish (thought was basic harships of big plant too long in little pot). I never sprayed or did anything to them (was still researching darn hesitation!).

I handled em all over, examining leaves etc, & stacked em right next to each other, prob spreading anything they have. Now they mostly all have some leaves (mostly bottom branches first) that seem to be browning tips--> inward, & fades yellow to green further in the leaf. There's also brown spots that look 'target-like' as EB descriptions say. Most of em have fine looking very uppermost branches (pic#2)

--Found lots on identifying & preventing, but actual solutions seem rare. Mostly I see 'harvest what you can, prune, & hope for time". Is there a remedy to stop/get rid of it?? Stuff to mix, make, buy to eliminate EB? Doesn't have to be organic), as long as it really work & won't poison the fruit. Or...

---Should I toss em & buy some more plants? Don't have a ton to loose (no blooms yet), on the other hand I'm a little attached to them (the types, carefully picked em out). I could re-order, types aren't rare. Just don't want to be needlessly wasteful (of plants or money... Other than this I only have 3 in the ground, can't rely on those.

May be irrelevant, but last wk I ordered Soluble Mycorrhizae, Actinovate, & Bio-tone. (not sure how to use em yet or quite what are but read they're essential either for ET or ground planting). Will be getting kelp something, fish emulsion, & think I read to look into Daconil or serenade or Exel lg, but heard are for prevention/need to check em out. Am pretty good at finding products, just not solutions to EB...ha

Btw, If it is early blight I've gathered that it happens from letting them get to a weakened state (UPS, overgrown, little nutrition), & from spore spread by me, soil/splashback, or plants touching. Boo. I didn't plan things right, they arrived a wk & a half early so am simultaneously still digging plots/homes for them, building an ET, & learning what products to get/make. Thanks all, hope yours are healthy n green!