Why don't you compare swap fees and liquidity across different DEX. Apart from Uniswap there are others like 1inch, Sushiawap or Matcha all of them aggregate liquidity from various sources. They offer better rates and lower fees than onchain DEX like Uniswap. If that is a problem for you then use layer 2 solution as mentioned in the first reply.
I'm not sure if there is a site that displays all the fees for exchanges and maybe he is too lazy to do that, so he is here depending only on the experience of the users in the forum. Other DEX'es that you mentioned there are I think still ETH-based and I've tried a couple them before. Their fees are still high but maybe not as high as Uniswap? So indeed the OP can try them as well.
Saving something is better than nothing at all anyway. Layer 2 is a new solution to reduce fees but the only downside about them is that they can be a little complicated, especially for a beginner in crypto. Oh well, if we badly want a thing, we will do anything to get them. So, the OP might still learn them.