Play Store Alternatives
• F-Droid→ Many open source and pretty useful apps here. Worth downloading the app.
• APKMirror→ Directly Downloading APKs and doesn't sneakily try to install it's own app unlike other websites

• YouTube, YouTube Music Ad/free and a lot of extra features→ Revanced→ Requires some setup and if you want to login, you have to login into MicroG→ Althought it's open source and there have been no issues with it, if you want to stay safe, just don't login into these YouTube apps at all
  If I ever do a full setup guide, it will be added on odysee
• YouTube Music Alternative: OpenTune→(Unsure about downloaded song quality but I couldn't differentiate) Discovered recently after the YouTube Music app started having so so so so so many changes and so many ads disguised as songs shoved into my face and so many tests done on me(Shuffle only playing a certain song over and over) that I finally decided to give up. I was going to install YMusic and manually download my playlist on youtube and had started it when I found this.
• VLC more powerful alternative: MPV: This is not for organized playing with many files and folders. This is one click play mainly but it plays some 4K content on my tablet that VLC struggles with
• Tubemate→ Downloading YouTube Playlists at once mainly for students so that they don't stray from their study. (However, wathcign videos is not actually study.)

Stremio→ Stream Popular Movies/TVs on torrent. If it's not pouplar it will be very hard to stream directly.
Note: Requires free signup and I recently discovered that newer signups don't show the torrent community add-ons for some reason but still worth giving it a try.

Torrent-csv & LibreTorrent combo:
Torrent-csv let's you search torrent without ads and very very quickly but keep your spelling very correct and anything with special characters like ' will require a bit of hit and miss.
Libretorrent don't download from PlayStore as it will be forced to write in it's own hidden android directory. Basically downloading torrents without ads.
P.S: I tried BitTorrent paid pro and it sucks Nicki Minaj's Ass.

Files by Marc apps & software→ Only way to access the hidden Android folder's data/media/obb folders for various reasons like pirated games/apps or just seeing what the app hides in there for unimlited money glitches so you can stop playing Temple Run. WTF! STOP PLAYING THOSE GAMES. OMG!

Download Navi→ Downloader for Andriod. However the inbuilt browser has no adblocker so you can't use this app directly to download and you will have to share links to download in it. Still pretty useful though.

Firefox but with Ublock Origin Add-On & Ask before opening Links in Apps→ ONly way to safely surf the internet on mobile without being shot down with ads and constant app getting in the way of just browing.
Note: suffers from some memroy issues so copying OTP from SMS app to this might close it so you might want to keep Chrome as a backup.
My site has no ads so you might want to put this in exception just so any links you might use for purchase actually helps me.

Total Commander→ Fukcing Pro Level Advanced File Manager but download from their forums and not play store. The play store version is a pussy.

Radio Paradise→ Great Song Selecion FLAC(highest quality) radio.

Nova Launcher shut down and if the code is made open source, there will be pretty amazing forks on github. Will add them here.

Proper Mediation App→ Skip Login.

Syncthing→ Syncing data between devices. Requires some setup.

Offline Simple Gallery App→ Mainly if small images from music, books, games and other media keeps showing up in your current gallery. It has regex and you can skip fodlers based on search. Some setup required but only once.

Wattz→ Mainly to check if your phone is actually charging or not but also helps with temps in notification bar.

Shizuku→ Bypasssing Restricted Settings on Android

SD Maid 1→ Use it mainly for the storage analyzer which helps me know which folder/file is taking up most space on my phone. Skip all the access it wants apart from storage one.
Note: It has the newer SD Maid SE which looks better for everything else.

Kuro Reader+ Comic Reader.

SAI→ apks or Split APK open source ad-free installer

A few of them have free trials/demo/non paid versions so don't take my word for it, use it first.

• Read Era Premium→ Same thing as below but plays audio in background. Read Era Free→ Try book reading feature here for free first.
• Smart Audiobook Player→ Free version you can test for a month and then decide. I used to use Sirin but that didnt' remove books after I had deleted them which was quite often so I got this.