Way back when, I used to just look at the top top for general aug ideas. Still a viable option. . .
I just looked at magelo profile > modifiers > heroic > select either one i was aiming for, and work through the list of obtainable items.
Basically you just need to decide on either heroic sta/wis to focus on for the type 5's, and consider how much weight you give to the type 7/8's that don't have either the sta/wis that you are focusing on. Some augs with massive hp/mp/ac are 'better' than another aug with no ac and moderate mp/hp but has a small amount of heroic wis/sta
Once you have all slots filled... the difference between will be very low and unnoticeable to stress too much about chasing a particular aug to replace an existing one.
But to each their own, the best in slot augs is a nice goal, something i did in the past... back before type 5's and when augs seemed a little more focussed by type than balanced for most
Personally if I was starting this, I'd focus on ToV missions for currency for the type 5's . If i wasn't able to complete these missions reasonably to farm them, i'd farm the TBL missions for currency for them type 5's.
For the type 7/8's i'd do as above, look at top ranked magelos and find which are easy to obtain and work from easiest to hardest/most time consuming. Ie. filling out with the faded velium gem of* lore groups (you can't use all of them) ie velium gem of vigor OR brilliance, you can't wear both
Lastly, something that made me stop caring about chasing augs... is considering the mod 2's (clairvoyance/spell dmg etc) when choosing the above type 7/8's -