Suggestions for travel tote or backpack bag

[Magicsauce]

I am travelling with DS aged 7,11.
Its long haul and with Qatar Airways.
please could anyone suggest me a tote bag or backpack which can hold a laptop,two iPads,pouches for makeup and other essentials,atleast two T-shirts for boys,cardigan and shawl,water bottles,two books.
The laptop bags are pretty crap.style wise too boring and apart from laptop,gadgets,you can’t carry other stuffs.
Have checked Belroy and Antler.Don’t think they have much room.
With QA,all personal belongings including laptop should be in personal handbag.
So overnight/ weekender bags are treated as personal bag?
we do have cabin bag,but I want one bag for essentials to be kept under seat,it’s practical.
Elder is autistic and younger is messy.
so am in need of much storage with either.
Younger one,always messy,I need constant supply of tissues,towels.
In many trips,they would be pretty much excited about their own backpack but ultimately it’s my DH who has to carry.
This time we are on our own and have a tight Transit time.So can’t take risk of their two cabin bags and backpacks.From three of us,we are taking one cabin bag and one handbag and other are check-ins.
Thank you for bearing with such a long post.
please suggest a handbag/tote/backpack with trolley sleeve which can hold above stuffs including my favourite osprey cross body bag (for passsport ,wallet,phones).
TIA

Longchamp le pliage would hold those ( assuming everything electronic is in a case) I think.

My best travel bags are Mia Tui - either the Sydney or billie backpacks, or the Jennie shoulder bag.

I've used the Jennie as my only bag for a work trip, so carried laptop, leads, kindle, toiletries & clothes.

I second Mia Tui, the suitcase handed sleeve is invaluable. Lots of internal pockets too

Mia Tui. Have the Jennie. I sold my le pliage bag. It’s just a big empty hole.

Thank you all.Will go for Jennie and to purchase laptop sleeve separately