Hello all, been a while.
Just as the title says, I’d like a lightweight browser where I search something random then deletes everything when closing.
Currently I only have Brave as my browser, which I use also for logins, so I’d like to separate things.
Suggestions? Thanks in advance 
DuckDuckGo’s browser might be an option for what you are describing. They have a handy “fire” button that if you tap clears your history and searches. Includes a decent (but not as good as Brave Shields or Extensions) tracker blocker that also blocks most 3rd party ads.
DuckDuckGo’s browser is something I recommend on Android if someone is looking for a secondary browser OR if someone is looking to move away from Chrome, but want something super simple to set up. Brave or Firefox is preferred, but some people don’t want to take the time to configure them and that is where DuckDuckGo’s lack of customization options serves as an advantage.
Firefox Focus fits this perfectly.
Opera Mini has worked really well for me.