I'd say watch watch full series, it's just you mentioned release order.Yeah I forgot Voyager. Thanks for your help!
Something like this?
TOS → movies 1 a 6 → TNG --> movie 7 (Star Trek Generations) → DS9 movie 8 (Star Trek: First Contact) movie 9 (Star Trek: Insurrection) → VOY → movie 10 (Star Trek Nemesis)→ ENT movies 11 a 13 --> DISCOVERY
I was thinking about watching a complete series before watching another, its better to mix seasons?
In that case, after Generations watch all DS9, then Insurrection, then Voyager, then Nemesis.
EDIT forgot First Contact, I guess just watch whenever before Insurrection, though is a small scene that references a Voyager character of sorts.