There any better afk gp than vyre sentinels?

Need something to afk while at work and desperately need gp to get 70 smithing and cons. Currently camping sentinels as they’re very afk but only around 100k gp/hr which isn’t great (plus chance of blood share which is nice to be fair). Any better suggestions (preferably that I can afk for 5 minutes at a time or something similar)