blockland glass has moderator-reviewed addons but unfortunately despite being around for a while there hasn't been a lot of top tier mods like in the old rtb days.
some major changes you probably have noticed:
-steam integration, and 200k+ id's
-no maps, but now have support for shadows and shaders
-some more default addons like bots and default doors and sports items and modter (allows you to build vehicle-collision-stable terrain)
-events are default (if you were from v8 days) and expanded wrench menu
some addons you really should get:
-new duplicator - best lagless duplicator with mirroring, box selection, save/load dup support, and other quirky functions like painting and wrenching all bricks
-zeblote's drop down search addon - makes finding things in dropdown lists really easy
some good addons:
-Emil's smallbricks, smallramps, vertical print plates
-Demian's brickpacks (not BB), or BlackDragon's filler brick packs
-Any default door bricks you can find, honestly
-Octagon bricks/1Random Brick Pack (contains those plus a bunch others)
-Extra fences
-bushido's tier tactical (old but still the most stable weaponset out there)
-Greek2me's Slayer (TDM mod replacement with extra gamemode functionality)