Hey, that’s really cool; I’m glad you have a concrete goal for yourself. If you ever have any questions about plant milks, feel free to drop us a line. I think most of us have a lot of experience with them. I think I’m covering most of my bases here:

• I started with sweetened almond milk and over time moved to unsweetened. I personally can’t stand the vanilla kind in my cereal, so that could be affecting things if that’s what you’re getting. If the sweetness or lack thereof is where you’re getting hung up, mixing half sweet with half unsweet can strike a nice balance, and since the shelf life is so long, opening two containers won’t matter too much if you use them fairly consistently. It takes some time to adjust one’s palate to plant milk, but it’s also worth exploring the huge amount of variety if you’re actively dissatisfied with what you currently use.
• I’ve always thought oat milk tastes weird in cereal and so still tend to use soy or almond milk for it. If the milk feels too “thin” for the cereal, Almond Breeze has a creamier version of their almond milk, but for me it’s a bit too heavy (I never liked 2%; I was raised on skim milk).
• If you’re using Silk-brand milk, I’d highly encourage you to try even a generic brand of soy or almond milk; I think Silk is highly unrepresentative of how those milks actually taste, and it made me turn away from plant milk for years when I first tried it.
• Personally, I think pea milk is the pinnacle of plant milks and towers well above dairy milk and the other plant milks in terms of quality (maybe pistachio milk could dethrone it, but that’s like $8/L, so fuck if I’m ever buying it lol), but it’s considerably more expensive than what I consider the three “basic” plant milks. I’d definitely still recommend trying it though as a novelty, just not as part of your daily routine unless you plan on enjoying it in your Scrooge McDuck gold coin pit.