Some people will hate on me for saying this but my primary option is Microsoft Edge. It's quick, clean and no memory leaks (of my knowledge). I get the updates as soon as they come out and I don't get targeted ads. My secondary Choice is either Chrome or Opera depending on the situation. Certain websites Don't work on Edge or Opera correctly for some reason so that's why I use chrome sometimes. Opera I will use when I need a vpn for some reason such as going onto sketchy websites to check things out.