Help me which laptop to buy kasi nalilito na po ako and not so knowledgeable sa laptops

Will use it mainly for work. I open a lot of tabs and download & upload many files. So I prefer something that has big storage, won't lag, and will last for a long period of time. And maybe up to 15" screen. Naliliitan na ako sa 14".

Budget: 60-80k.

Thank you!