Where to bot combat in f2p?

Hey guys, I've been suicide botting a new account in f2p just because I can and I'm bored. Right now the account is nearly 50 combat, I've had it botting Roach Drones. Its made some money that I can use for gear, and some more on top of that. Cockroach Drones aren't giving much exp any longer, and I'm looking for a new place to train that won't be too overcrowded. Preferably with something that I can loot for cash.

What should I bot at about 50 combat?

70?

90+?

Just curious what you guys think. I was thinking of botting SoS spiders once I reach about 80 combat.

 

I always did the stronghold of security, you can bot the goblins and minotaurs at low levels and at 90+ I would say to do ankous as they have decent drops for an F2P monster.