Move 2 year old's bedtime to 7ish, get them both in bed at the same time so you can enjoy a longer evening
My 2 year old had an 8pm bedtime but now he's 3 I moved it to 7pm so he could go to bed at the same time as his little brother. He also dropped his nap though so needed the earlier bedtime. Does yours still nap? Although even with a nap most 2 year olds are going to bed earlier than 8pm so it's not totally unrealistic.
Also you can start teaching the 2 year old to be a little bit quieter at bedtime, I've been trying to encourage my 3 year old not to stomp around so much, we try to talk in calm voices and keep the whole bedtime routine a bit more tranquil. Obviously easier said than done!
I aim to put ds2 to bed in my room but Ds1 would invarI ably wake him up (I think). I think the first step would be to attempt to stop him venturing into my room during his bedtime routine . He's been a difficult sleeper, great now, but we have quite a lengthy bedtime . It could do with being a little earlier, for him to be in bed by 7.30. His dad often doesn't get home til past 6 so that's the reason it is often too late.
Atm we all go upstairs, ds2 gets washed and changed and Ds1 has a bath. If time allows ds2 has a bath . Then ds2 goes downstairs with H for his bottle while I get Ds1 out of the bath, dried dressed milk stories bed etc.