My picks
DOGE
SUI
WLD
There are no memecoins that I would keep for six months, makes no sense to keep a memecoin for long term. They are fine for very short term trading, the max I would hold any of them would be a week, more than a week and I would not hold any memecoins, they are shitcoins wrapped into a meme outlook. This is why people prefer stuff like BNB, SOL and other strong coins, because those do have some good return.
One exception could be doge, if you really like it, not that I would invest into doge either, but I could see why that would be appealing to public, because not only it's a memecoin, but also it has been around for 10 years and more, so that means it's something that hasn't crashed and ruined peoples investments so far and can be trusted.