1. Thin Lizzy
3. Uriah Heep
4. Rainbow(listen to the second album, it's their best).
8. ACDC(Bon Scott years)
11. Blue Cheer
While all these bands aren't exactly like UFO, I think that fans of the greatest hard rock band may appreciate these names. A lot of these bands are very underrated(just like UFO). Thin Lizzy was very much alike, because they had a different sound than most bands of the time, they had great songs and were consistent, and they didn't get really big. Nazareth is also very similar with their insane riffs, and emotional vocals. Whitesnake has their moments where they sound like UFO. Check out their song "Here I Go Again," and I swear some of the lines in the song were influenced by "Love To Love." Aerosmith is a great alternative, because their early material is very raw, just like UFO. Definitely check out all of these bands if you haven't already. If you're going to check out Rainbow, the just listen to the whole Rainbow Rising album, because it has amazing songs from top to bottom including; "Tarot a Woman," "Run With The Wolf," "Starstruck," "Do You Close Your Eyes," "A Light In The Black," and their best song "Stargazer." If you're going to listen to Saxon, then check out the songs "Princess of the Night," "Denim and Leather," "Dallas 1 pm," and their cover of "Ride Like The Wind" by Christopher Cross. When it comes to Accept, the standouts are "Balls to the Wall," "Reckless and Wild," "Fast As A Shark," "London Leatherboys," and "Hellfire." Uriah Heep is much more similar to early UFO with Mick Bolton, and their standouts are "The Wizard, " "Lady in Black," and "Easy Livin'." Blue Cheer was a psychedelic band from the 60's, and their debut album Vincebus Eruptum sounds a lot like early UFO. Their cover of "Summertime Blues" by Eddie Cochran is known to be the first metal song ever, and it sounds a little like the cover of "C'mon Everybody" on UFO 1. Ratt was a great 80's band, and they actually had Michael Schenker in the band briefly. They have a very cool sound to their music, largely because of Warren Demartini's innovative guitar style, and Stephen Pearcy's awesome voice. Some standouts by this band are "Body Talk," "Lay it Down," and " Round and Round." There are so many other bands that have been influenced, or sound like UFO, and if you want to recommend any feel free to comment.