I thought the Brussels sprouts and stuff you mentioned are fine with keto. If you enjoy salads, those are great too.
Obviously, plenty of butter and cream with whatever low carb steamed veggies you like works, too.
I've been keto almost ten years (for diabetes) and I post a daily recipe M-F on nostr, but if you're looking for more ideas, they're collected here: https://ketobeejay.npub.pro/tag/recipes/