While Silver is good, I would prefer gold. So if you said Litecoin vs Gold, then I would probably pick gold, seems like a better idea.
But, if we are considering just Litecoin vs Silver then I would say Litecoin easily.
Why have difference between Gold and Silver? While there are limited number of them in both category, silver has never been considered as high as gold in value and in reputation for assets neither, so it doesn't really appeal to me.
This isn't just based on price, or ROI, but based on the fame it has around the world. When people want to buy an asset, they would rather get a gram of gold over any silver equal to that, so gold has more people who love it, compared to silver.
Litecoin is right in the middle of that, and I believe litecoin is better than silver but worse than gold. This should not be a big deal though, you can buy literally all three, and if you keep saving money and keep buying all three then all three will give you a good return, so you shouldn't feel bad about this.
There is no doubt about how this could be wrong, we need to consider how this could be doing fine on the long run. Just keep saving and keep putting money in at all times.
Gold is the best choice, obviously. But it cannot be compared directly with Litecoin. Bitcoin is more akin to Gold with its store of value properties. Litecoin, while scarce, is much closer to Silver based on past market performance. Currently, LTC is 1/1000th the price of 1 BTC, while Silver is 1/100th the price of 1 oz of Gold. There are huge similarities between both Litecoin and Silver. Thus, we should compare BTC vs Gold, LTC vs Silver, and ETH vs Oil. There's no denying Bitcoin will always be superior to Litecoin. Same way Gold will always be superior to Silver.
I see Litecoin has potential into becoming something huge in the future. It may not be as innovative as other projects, but it's a tried-and-tested Blockchain network accepted by a wide variety of merchants worldwide. It's also a coin with one of the highest number of trading pairs across multiple crypto exchanges. So you can use and trade Litecoin almost anywhere. Try and see if that's even possible with Solana or even TRON. Two overhyped chains that are often unreliable and extremely-centralized (especially Solana). I'd buy both LTC and Silver for complete peace of mind.