Building a Genex deck, need help with Spells/Traps

[Energon Vlada]

Before you ask, yes, I should be building meta decks instead of building ''off meta garbage'', I just wanted to make a deck for fun. I just unlocked Genex Undine(an UR) thanks to the box sales as well as other Genex cards, I've collected Genex Ally Chemistrer as well, as well as majority of available Genex monsters(except Hydro Genex, I think, I got other Synchro's already).
I'm struggling with building the deck because I am unsure which spell/trap cards I should use(don't know by effect or card name), and I'm uncertain as to which weaknesses does the Genex deck have.
Can you guys help me complete the deck? I'd be willing to put the cards you recommend me the most. I'm also using Yusei for this deck btw.

[Darkskinned King]

not really related to your question but maybe you could try sergeant electro and genex army to lock your opponent? + rare metalmorph, seven completed, cyber dinosaur, gravity blaster.