I have a
Vizio co-star that I enjoy. It costs just under $100 USD. Mine is wired, but you can connect it wirelessly to your network for the purposes you mention, or import media with a flash drive via the USB port.
What I like most about the costar is that it has a full browser built in. The remote contains a touchpad for cursor control, and the flip side has a full qwerty keyboard and gaming buttons. It also comes with popular apps already installed such as hulu, amazon, netflix, vudu, etc, but you can add more through googleplay. It also comes with multiple free trials to try out several of those streaming services.