Besides gaining support from the "Super Defense Robot" Archetype (as well as some "Gimmick Puppet" monsters), there are powerful Level 8 Machines that can be summoned easily, including "Ancient Gear Gadjiltron Dragon", which is the strongest "Ancient Gear" monster that can be Special Summoned with a destroyed "Geartown".
Use "Galaxy Queen's Light" if you have any Level 8 Machine monsters to change the Levels of all your other different-Level Machine monsters to 8, easing the Summoning requirements for this card.
If you have a Deck with many Level 8 Machine monsters and you already have a Level 8 Machine on your field, you can use "Xyz Reception" to Special Summon another level 8 Machine to the field for an easy Xyz Summon for "Googly-Eyes", or any other eligible Rank 8 Xyz card. Beware, though, that the Special Summon effect does not work on "Ancient Gear Golem"; It's best to use "Xyz Reception" by selecting an "Ancient Gear Golem" already on your side of the field, and Special Summon another level 8 Machine.
Level 8 Machine-Type monsters that can be used as Material for this card: