BABY Sun screen & swimsuit help/advice

My son is 10 months old today. 💙 Pretty soon he will be walking around and spending more time outside. His birthday is in June which is a hot time in the summer. We want to get him a kiddie pool!

What is a good quality sunscreen I can use on him? What brand/name/quality/SPF do you recommend?

2 weeks after he was born, I developed a sun allergy. I’ll be lathered in adult sunscreen and in the shade. He will also have shade but he will want to explore! I want to keep him safe but I’m a FTM and don’t know much about baby sunscreens. And should babies wear hats?

We also don’t know what type of swim suit to use. A one piece? Shorts and a long sleeve swim shirt?

Thank you in advance!