Bubble baths cause UTIs so avoid.
I love a good epsom salt bath, You can get them anywhere. A really good one that I buy when onsale is Dead Sea Salts from Whole foods or amazon.
https://www.amazon.com/Dead-Sea-Warehouse-Exfoliates-Moisturizes/dp/B075ZC9DTX/
Not sure if you're open to it but these CBD bath salts/bombs are super relaxing. I get them at Moms Market
https://inesscents.com/all-cbd-products/cbd-bath/