First, don’t underestimate the (combined) cognitive load of adjusting to new job expectations (even if you’re in the same role with the company moving you, the time zone shift at the minimum will entail changes), getting set up in a new country, AND learning a new language simultaneously - the last one is the only thing you can ‘control’ for to ‘free up your mental bandwidth’ - which you’ll need to build up your social life.

With that said, I’d look at Ireland as the top option since you don’t need to worry about the English part (which also has the benefit of being the friendliest society to enter into), and if you ultimately want to stay, the most flexibility and best process for navigating immigration.

Malta is worth considering for English, a better tax regime, friendly locals, and better weather. Immigration there is more dependent on how well you demonstrate integration, though it sounds like you are keen on doing that anyhow.

Between The NL and Denmark if you’re absolutely set on these two, I think I’d give the edge to NL… I think it’s the more vibrant of the two by a significant margin. For someone potentially looking to get citizenship, the Danish process (9 years residence, some proficiency in Danish, etc., etc.) is more daunting, but the benefit for most people is that Danish permits dual. In your case (since India mandates that you renounce), the downside of the Dutch process (you renounce your priors) is a moot point, as you’d have to renounce on either case. The NL has a 5 year residency requirement, but also an integration exam (that is conducted in Dutch).