What kind
The ko/so/a/do 'kind' row for describing something or asking what it is like.
konna
this kind of; like this
こんな
Describes something you are showing or experiencing (konna kanji, konna no hajimete), and konna ni means 'this much, so'.
konna kanji de ii?
Is it OK like this?
こんな感じでいい？
konna kanji de ii desu ka?
Is it OK like this?
こんな感じでいいですか？
konna ni + adjective is an exclamation: konna ni oishii n da! (I didn't know it was this good!)
sonna
that kind of; such
そんな
Describes what the other person has or just said, and builds push-back (sonna koto nai = that's not true); alone, sonna! means 'no way!'
sonna kanji de ii yo.
Something like that is fine.
そんな感じでいいよ。
sonna kanji de ii desu yo.
Something like that is fine.
そんな感じでいいですよ。
sonna ni + negative means 'not that much' (sonna ni takakunai); it has its own entry, sonna ni.
donna
what kind of
どんな
Goes before a noun to ask someone to describe it (donna hito?, donna kanji?); any particle goes after that noun (donna kanji ga ii?).
donna kanji ga ii?
What sort of thing do you want?
どんな感じがいい？
donna kanji ga ii desu ka?
What sort of thing would you like?
どんな感じがいいですか？
donna hito? asks for a description; dono hito? asks you to pick one.
anna
that kind of (we know)
あんな
Describes something you both saw or know, mostly in anna hito or anna koto, and is often disapproving.
anna kanji ga ii na.
I'd like it like that one.
あんな感じがいいな。
anna kanji ga ii desu.
I'd like it like that one.
あんな感じがいいです。
anna hito often sounds critical, like 'someone like that'.