New House Alone...Let's play [NSFW]

Soo now i moved from my parents house and I'm free to finally try for the first time some dildos & funny gay sex stuff...To be honest I'm in a relationship but we did anal only twice....I would like to buy some dildos and maybe some lube to train myself and have fun when i dont have my bff cock under my hand....Which kind of dildos, brand and lube would you suggest for this kind of things? I would like to buy it from amazon, is it safe? and anonymous?