I’m a Pokémon coordinator, and I’ve been using my wigglytuff primarily but I’ve been thinking about getting her a partner. Any recommendations as to what would pair with her best?

Well, it depends on the contest and your routine, anonymous. I must admit, I’m even less well-versed in contest strategy than I am when it comes to battling strategy, so my advice on the matter would be severely limited. However, from what I understand—based on what I know from my younger sister and Lanette’s days as a coordinator—it’s best to begin by asking yourself what effects you want to evoke during your battle. Know your wigglytuff’s strengths and pinpoint what parts of her abilities you wish to highlight. For example, if much of your routine centers around her singing ability, consider getting her another pokémon that can use Sing so the two of them can perform in harmony. If, however, your routine focuses on her use of elemental abilities, get her a partner that would compliment the elements she uses. (Fire if she uses ice-type attacks, for example.) Think hard about what would compliment everything she does on stage, and that should simplify your choice considerably.