Oh, emails of course, surfing the web; no game playing though. Might want Word on it as well.
Any 5ish year old laptop will work perfectly for just that. If your current one is doing well, keep it. Faster CPU, GPU, drives or more memory will not give you but a marginal improvement. The only thing you would need to care about is the size, screen, battery life and keyboard comfort. When you are ready to get a new one don’t buy the leading edge (bleeding edge) stuff. Too much $ for the incremental better-ness. Look for last years model on close out.
As for brands, I avoid Dell, and HP. Personally I go with Clevo or MSI most of the time, but their laptops are high end commodity laptops for gamers, developers and engineers. No benefit for what you are doing with yours.
Forget Apple since they mark their stuff up way beyond what the performance diff is. Their premium is for the training wheels you get on their stuff and the snooty attitude you can have saying “I can afford this fisher price computer because I am to dumb to make decisions myself. Now make me a soy grande macchiato with matcha tea sprinkled on the whipped vegan psuedo cream on top.”