Didn't have Windows in mind.
https://xubuntu.org/
Many, many other Linux variants are also available.
https://distrowatch.com/
I have an old Core2Duo laptop with an SSD running Xubuntu and its faster than it was when shipped with Windows Vista and a conventional HDD.
Its my main home computer, I also recently acquired a Chromebook (fantastic thing) for out and about.
I haven't used Windows for over ten years, only time I go anywhere near it is when wife's desktop PC plays up.
To give Microsoft their due, since she got a W10 box a few years back there's been very few problems.