I use Firefox for Android and the uBlock Origin “extension”, but I’m hesitant to recommend it anymore due to some recent changes, likely due to having to fire so many developers.
I’ve read that Edge has Adblock Plus included now. I might recommend trying that. It’s just basically Chrome with Microsoft’s branding, but they decided to include an option to block ads. I’m not sure, however, if it gives you the ability to disable ABP’s “unobtrusive ads” option. But it might, seeing as Microsoft (unlike Google) is not an advertising company.
A website that I trust recommends the Kiwi Browser, which is based on Chrome but has adblock built in. I’d probably try Edge first, but if it doesn’t adblock enough for you, try this one, as well.
Unfortunately, I’ve only tested Firefox. It’s okay, but the newest version “Daylight” replaced an older version that just worked with one that has a lot of bugs, especially on Discourse websites. And they stupidly blocked your ability to try and tw except as a possible last choice.
Those are adblock for browsers. If you want adblock for your entire phone, that’s a different story, and I’ll have to go back and check which ones I found worked best on un-rooted phones. (If your phone is rooted, the answer is easy–AdAway.)
And for YouTube, YouTube Vanced is excellent. You’ll have to install it from its website, however.