Thanks for all your comments!
From all your class suggestions, I believe
Fighter,
Bard and
further Rogue levels are the way that fits my character.
Further Rogue levels:
Spells: I already picked up "Find Familiar" on 3rd level (PHB 98:
"You know three 1st level wizard spells of your choice, two of which you must choose from the enchantment and iIIusion spells."). On the 8th level I picked
Darkvision, so I can stealth in the dark. If I want to go for
Haste now, I need to go until Rogue 14 to get another non illusion/enchantment spell.
Haste and Hypnotic Pattern are nice, although we have a Sorcerer that can cast both. Major Image is also a nice one. I like illusion spells, although DMs are regulary running crazy with them.
Fighter:
This one is obvious.
Extra Attack is the one why I am going into this class. But
Superior Dice are also excellent to use when you really need to hit.
Action Surge is nice, but we are playing with the variant rule for rests (SR = 1 day, LR = 7 days), so I won't take much out of this.
I could decide later, if I go until Fighter 6 to get the extra ASI.
Bard
The reason I would dip into bard is
Jack of all Trades that lets me add 1/2 proficiency bonus to all non-proficient skills. Combined with reliable talent I can have a guanranteed roll of "10" for any skill check what is really nice!
Bardic Inspiration is nice to have, but not mandatory.
Spellcasting doesn't offer me
anything because of the multiclassing spell table .
TL;DR:
- Fighter: Seems the strongest damage output for combat.
- Rogue: I would need to go 3 more Rogue levels to get Haste (what our Sorcerer can cast anyway), +1D6 SA damage and 1x ASI. Blindsense isn't that great for ranged combat. The question is, if I should go for Rogue 12 to get the ASI. But that wouldn't give me anything else (not even another SA damage dice).
- Bard: Seems pretty much utility. I like spellcasting, but I think I would need to give up further Fighter levels at all to get a real advantage out of it. That would be a really big trade for combat (no Extra Attack, no Superior Dice).
I am interested in your further comments!
Kind regards!