Using the Android app it is not possible to add Albums and/or Playlist to the queue or a playlist. Please add this function (I think IOS users already can do that...
Please vote, so Spotify will look into it
Updated on 2020-05-26
Thanks for bringing your suggestions to the Community 🙂
It's possible to add albums to the queue on mobile by pressing on the three dots button > Add to queue. As far as adding playlists to the queue, this idea has already been suggested here. Make sure to add your votes and comments there and hopefully Spotify will consider implementing it.
Hope this helps and have a nice day!