どちら => Where N5
Doubt
どのくらい => how long N5
と~と~どちら~か => Comparison N5
Compare
いちど .... ば/... たら => Just... once N4
Conditions (sufficient conditions)
どうやら => possibly; apparently; seems like; somehow; barely ~ N2
たらどうですか => why don't you; how about ~ N4
Invite and advise
~にとどまらず => not limited to; not only… but also ~ N1
Simultaneously
どうせ (のこと) だから => Because eventually have to ... N3
Invite and advise
どうやら~そうだ  => look like; appear; seem; feel like N2
Speculation
どちらかというと => Overall, it can be said N2
Evaluate
どの => which N5
どこ => Where... N5
Doubt