Link: All 50 Signal Jammer Locations — Unlock Avi Schwartzman
Peyote Plants
These notorious hallucinogens are not only available in the story mode of the game but also made their way into GTA Online. If you ever wanted to play as a Dog or perhaps a Cat, you can do that by consuming one of these mysterious Peyote Plants you can find all across Los Santos and Blaine County.
There are 76 Peyote Plants in GTA Online as opposed to the 27 found in story mode.
Link: Peyote Plants Locations
Movie Props
The Movie Props collectible was added as part of the Los Santos Summer update featuring various new pieces of content, including an Alien costume. However, to unlock the new outfit, you must collect a total of 10 movie props spread throughout Los Santos. You also get bonus cash and RP for the collection of the props.
Link: Space Interloper / Alien Costume — Solomon Richards' Prop Locations & Random Events
Shipwreck Treasure Chests
There are various treasure chest spawn locations across the map, and you can find them next to shipwrecks. The catch is that only one chest spawns every 24 hours. You must collect seven chests for seven days in a row to unlock a special outfit called The Frontier Outfit.
There are 30 possible spawn locations, and the chest can spawn in any of these daily. You also get cash and RP for every single chest you collect.
Link: Shipwreck Treasure Chests Locations
Antenna Locations
There are 10 Antennas you can find scattered throughout Los Santos. The Antenna collectibles are quite interesting as collecting all ten will unlock a new radio station called Still Slipping Los Santos. The "collection" in this context is repairing the antennas. This collectible was added during the Cayo Perico Heist update.
Link: Antenna Locations For Cayo Perico Heist
Cayo Perico Island Treasure Chests
You can find two daily treasure chests during the scope-out mission on Cayo Perico island. The spawn locations for the chests are fixed, but they spawn in a completely random order daily. You can collect these chests daily for GTA$15,000 and 1,000 RP per chest.
There are 19 spawn locations, with ten on land and nine underwater.
Link: Treasure Chest Locations On Cayo Perico Island
Added as part of the Los Santos Tuners update, there are a total of four media sticks and one secret media stick. Collecting all four unlocks CircoLoco's EPs. Each EP is associated with one media stick.
In addition to unlocking the EPs, you also get 1,000 bonus RP per stick. Once you collect all the media sticks, you get an exclusive CircoLoco Tee reward.
Link: Media Sticks Locations for Los Santos Tuners
Like the Los Santos Tuners Media Sticks, Rockstar added three new media sticks for you to find and collect as part of The Contract DLC. Each media stick unlocks a new song accessible via the interaction menu of your media player.
In addition to the songs, you also get an exclusive new hoodie.
Link: The Contract DLC — All USB / Media Sticks Locations
LD Organics Product
LD Organics Product are a collectible added with the release of the Criminal Enterprise update. There are 100 packages scattered all across the map. Each package collected will reward you with $1,000 and 1,000 RP.
For collecting all 100 packages, you will get a total of $100,000 and 100,000 RP. This is an excellent way of leveling up early and mid-game. In addition to the $100,000 cash for all hundred packages collected, you are rewarded with a $50,000 bonus, a hat, and a t-shirt once you deliver all hundred packages to Lamar.
Link: All 100 LD Organics Product locations in GTA Online
LS Tags are a daily collectible activity in GTA Online where you can spray tag five different corporate billboards for money and RP rewards. You must locate and spray paint five billboards from a pool of thirty potential locations each day.
Successfully tagging each billboard awards players with $15,000 and 500 RP. Completing all five billboards in a single day yields an additional bonus of $25,000 and the exclusive "Street Artist" outfit.