u/Former_Put_4004

These are my Orange King variety calendula seedlings and I'm just wondering what size pot to upgrade them to, how best to thin out to encourage growth, and any other tips as they grow inside with a grow light for a few more weeks before hopefully hardening off outside. I am zone 5 and got a later start than I'd hoped with the seeds.
Is it a bad idea to just transplant them to the larger containers they'll eventually be in, or should I do some sizes in between? And what size pot/contajner should I even do?
I'm very new to starting things from seeds as you can tell, so any tips are very appreciated!!

This lemon balm has taken off from a little grow kit at walmart that i did not expect to work at all. It seems nice and full and there's tiny seedlings that are completely shaded and haven't even had a chance to grow. Does it work with lemon balm to separate into a few bigger containers for multiple plants if it? or is it best to thin it out and place in the bigger container ok hoping to have it fill (how big should i place it in?) I know it's mint variety and should theoretically take up any space it's given and I would love for that to happen.
Also, if it does work with lemon balm to separate the seedlings without hurting it/its roots too much then I might like to keep a smaller container of it inside for the wonderful smell and quick access to lemon balm even into colder months later on, since I have plenty of windows with lots of sun light in the room it'd be in.
Mostly concerned about pot size, spacing out, how to keep encouraging growth inside with grow light before I garden off outside in a few weeks.
I'm in zone 5 by the way.
Any tips are appreciated, I'm very new to this!

Please give me some advice on how to best take care of my basil seedlings! Out of a few rows of failed seedlings that died soon after sprouting, this genovese basil cell is crowded with seedlings and i don't want to ruin it. Would I be able to separate some of the strongest ones and plant them a) in separate bigger containers (if so how large?) or b) plant them spaced out in a bigger container? I'm not sure if their roots are sensitive or anything, but the cell is so crowded and I want so much basil this summer if possible! I'm in zone 5 by the way and will hopefully be moving plants outside in a few weeks when it's definitely after last frost.
I'm very new to starting things from seed, please give any input about anything! Mostly I'm wondering how big of a pot, if I can separate them, general tips on how to encourage the growth still inside with the grow light until I attempt hardening off outside.
Also, I attached a picture of the one Thai Sweet basil that sprouted in my seedling graveyard and it's not nearly as crowded, but I have basically the same questions about that one.
Thanks so much to anyone with any ideas!

so I know I need to thin out these nasturtium seedlings, and I know they're sensitive to transplanting with their roots and all but I'm just wondering what exactly I should do to give them the right space they need so I'm not preventing any growth that could happen. They're bloody mary nasturtiums which I guess is more of a bush variety, and I think I want at least one plant that's just kept in a container outside eventually, and maybe the ones I have in the smaller coco fiber pots to be planted around a vegetable garden box to help there. I'm in zone 5 and I'm thinking I should have them either ready to be transplanted to the garden box or being moved outside in the final bigger container in just a few weeks here. My main concern is making sure I can still end up with bushy plentiful nasturtium plants, that they have enough space, and also that they're big enough and strong enough to be hardened off outside and keep growing well pretty soon. Any tips are appreciated, I'm very new to growing anything from seeds so any and all details are great!