Weapon loadouts lvl 2 traders

I'm new player at 16 lvl. Got some traders at lvl 2 and access to flae market. Could you help me with some basic loadouts?

My loadouts usually are in that order:

1. 7.62×51 RFB with sights and M80 from flea (I like SA-58 too or budget Hunter VPO-101)
2. .366 VPO-209 and AP from flea (or budget VPO-215)
3. 5.45×39 AK builds, like AK-105 with sights, AKM with BT from flea
4. 7.62×39 usually AK builds but got only access to PS ammo (had some BP from ride it and it was awesome)
5. Additionally shotgun MP-153 with flechette or magnum

Any good mods for those? I like AK builds in general, love that gun and ability of single fire and full auto, full auto saved me in CQC multiple times.

I was using some Vepr-136 or SKS and they are ok but find other ones better. SKS is fine but in CQC is hard.

WDYT? Should I try anything else?