This is an unusual advice, but could you take a look at the list below to see which mods should be kept and which should go. I have too many I want to install as it is, and I don't want it to get buggy like the first time I played BGT.

fixpack
Ashes and embers
Thief revision
aTweak shh

Sword coast strategem II? G3

Ascension weidu
Turnabout
Redemption

oversight’ G3

(Weidu)
item upgrade
lv 50 magic
ease of use

G3
Pnp angel

banter pack pp
IEP banter shh
5 friendship packs (yoshimo, imoen, mazzy, sarevok, viconia) shh
quest pack pp

back to brynnlaw pp
Edwin romance for viconia good ending Shh
item revision G3
spell revision G3

unfinished business

tweak
widescreen
world map

Ease of Use is fully deprecated by BG2 Tweaks.

Personally I found all bander and friendship/romance mods not really fitting in spirit of the game. Even the widely regarded as well made didn't manage to avoid fan pandering and self indulgence, so for me out of the window they go.

From your list there are a few that are really opposite in spirit so I don't see much of a point in installing together.
Lv50 magic for example extents level depended progression of spells up to level 50. That means that spells like skulltrap are not capped at l20 and keep getting stronger and stronger.
Spell Revisions on the other hand tries to fix the spells by lowering the power of too strong spells and making useful out of useless spells.
I doubt that they work together technically but they don't come along thematically too.

Same goes for Item Revisions and Item Upgrade. Few upgraded items are rather overpowered.

As pcamagna already mentioned BG2 Tweaks has everything Ease of Use has and then some

Also World Map I'm not really sure if Ashes and Embers and Back to Brynnlaw use that. If not there's really no point in installing that either.

Btw I don't think 30-something mods are too many. I have cut down my list to about that and I feel that it's manageable, as long as you avoid clashes of course.

Install that alone. Play the game with just that, then consider other mods when/if you find something lacking. A fresh start is usually the sensible place to be if you have to ask such a question.

In Bladur's Gate and Baldur's Gate II, I never install more than two mods: the FixPack and the "Unfinished Business".
Anything else always made the games less enjoyable according to my taste.