With Signulous you can side load uYouEnhanced. This blocks ads, includes SponsorBlock, and a number of other nice add-ons. Signulous costs $20 a year though, and you have to install a sketchy certificate to side load, and there's always a chance Apple breaks Signulous (happened a few times before but there's always been fixes). You can manually side load uYouEnhanced without Signulous, but it requires some research & weekly upkeep.