What would you transfer them to next - the 5 gal pots or something in between?Personally, especially with photoperiods (as opposed to autoflowers) I prefer to "up-pot" in stages. This helps prevent root zone issues (such as root rot) later on down the road.
If it were me, I would transplant those to 1 gallon pots. But I would probably give them another week or two in those starters, first.
I was thinking of starting a thread on specifically this question since I didn't went on a search and didn't find an answer. I want the final homes of my next grow to be 5 gal pots but want to have the pots on-hand when I start. I got 3" starter peat pots which I'm thinking of dropping into 1/2 gal pots for vegging after the seedlings are viable. Maybe 1 gal pots make more sense and then 5 - something in-between?