any suggestion?

Did you actually find a way to make mapping worth it?

lvling to 100, don't want to do legions.

ah, okay, i see....

Ask MFACAD

Cemetery, Ashen Woods, Burial Chambers, Strand are the 4 I can think of at the top of my head (not sure if they exist in 3.19 map pool)

I personally like maps that are linear and/or loops around
Lava Lake, Defiled Cathedral, Grotto, Promenade, Strand, Belfry, Vault are some I can think of

I’m leveling your 100 with RF Inqui. Running Waste Pool, Strand and Grotto. Radius of RF is exactly the opening usually that burns all mobs.

Atoll.

Running belfries is what people used to do in splits between breachstones