Alternatives to traveling by train?

Hello everyone,

I am currently traveling in Tokyo and have used the train several times, but since I often go shopping and carry a few things with me, I don't want to bother the people on the train with my stuff.

I've used the GO app to order a taxi once. Everything went well, and I can see the price in advance, even if it is quite high, but in my opinion it's more comfortable than taking the train. But I wanted to ask if there are any other alternatives or other apps that might have better prices?

Thanks in advance.