a help for specific reduced charset needed

[Snoopy]

if you have really such a good clue about your password, yeah building up an own dictionary would be the fastest possibility and combine this with rules

basic dict would be
google.com
yahoo.com
aol.com
whatever.com
rules, see https://hashcat.net/wiki/doku.php?id=rule_based_attack
toogle case
T0
T1 and so on, you can also use combinations ( you can utilize hahscat and --stdout to help you combining)
T0 T1
hashcat.exe --stdout -a 3 -1 0 -2 123456789 "T?1 T?2"
T0 T1
T0 T2
T0 T4
T0 T3
T0 T6
T0 T9
T0 T5
T0 T7
T0 T8
(unsorted)
you can redirect >> these into a file and any other combinations you like
replace
sXY
sa@
sA@
delete the dot
@.

and any combinations of these rules ( i think a good editor will help)